Perhaps you should try some spelling variations:
"word basics technical paper" » "word basic technical paper", "word basics techniques paper", "word devices technical paper", "world basic technical paper", "bond basics technical paper", "cord basic technical paper"
"work api technical papers" » "work mali technical papers", "work ii technical papers", "work iii technical papers", "work ai technical papers", "work app technical papers", "work ani technical papers"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"word basics technical paper\") OR (\"work api technical papers\"))".
• Removing quotes may allow a broader search: (( word basics technical paper ) OR ( work api technical papers )).
• Adding a wildcard symbol may retrieve word variants: (("word basics technical paper") OR ("work api technical papers"))*.