Perhaps you should try some spelling variations:
trai nghiem » trac nghiem, thi nghiem
trach nhiem » trac nghiem
khang trai » hang tai, trang trai, khac trai
canh trach » canh tranh, khanh trach, canh tac
nghiem te » nghiem de, nghiem ve, nghiem tien
khien hoc » nhiet hoc, dien hoc
thu canh » thuc hanh, thu cong, thu ban
de hoc » du hoc, dien hoc
thuoc » thuc

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( thuoc khang trai nghiem te hoc ) or ( thu canh trach nhiem ((de hoc) or (khien hoc)) ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( thuoc khang trai nghiem te hoc ) OR ( thu canh trach nhiem ((de hoc) OR (khien hoc)) )).
• Adding a wildcard symbol may retrieve word variants: (( thuoc khang trai nghiem te hoc ) or ( thu canh trach nhiem ((de hoc) or (khien hoc)) ))*.