Perhaps you should try some spelling variations:
thuc nghiem » trac nghiem
hoach thuc » hoach thu, hoc thuc, cach thuc
thu khanh » thi khanh, nhu khanh, thu thanh
khanh hoa » thanh hoa, hang hoa
hoa nghe » hoc nghe, khoe nghe, chon nghe
dau hoc » dai hoc, du hoc, cau hoc
day hoc » dai hoc
dan hoc » van hoc, dan toc, dai hoc

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( thu hoach thuc nghiem ((dau hoc) OR (day hoc)) ) or ( thu khanh hoa nghe dan hoc ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( thu hoach thuc nghiem ((dau hoc) OR (day hoc)) ) OR ( thu khanh hoa nghe dan hoc )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( thu hoach thuc nghiem ((dau hoc) OR (day hoc)) ) or ( thu khanh hoa nghe dan hoc ))".
• Adding a wildcard symbol may retrieve word variants: (( thu hoach thuc nghiem ((dau hoc) OR (day hoc)) ) or ( thu khanh hoa nghe dan hoc ))*.