Perhaps you should try some spelling variations:
cism international » ism international, rim international, im international
technical sciences » medical sciences, technical advances
chemical sciences » medical sciences, physical sciences, mathematical sciences
lectures » lecture

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((cism international) OR (acis international)) centre for ((technical sciences) OR (chemical sciences)), courses AND lectures.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((cism international) or (acis international)) centre for ((technical sciences) OR (chemical sciences)), courses and lectures".
• Adding a wildcard symbol may retrieve word variants: ((cism international) or (acis international)) centre for ((technical sciences) OR (chemical sciences)), courses and lectures*.