Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va
cua tre » cuu tre, cua triet, dua tren
nam tu » nam thu, nam thuc
tu van » tu va
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach _ lang xa hoi. ((hieu ve) or (hieu van)) nam tu van hanh vi ((cua tre) OR (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach _ lang xa hoi. ((hieu ve) OR (hieu van)) nam tu van hanh vi ((cua tre) OR (cua te))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach _ lang xa hoi. ((hieu ve) or (hieu van)) nam tu van hanh vi ((cua tre) OR (cua te))*".