Perhaps you should try some spelling variations:
ve triet » va trien, su triet
tai hang » thai hang, tai lang, tai hung
hanh vai » hanh vi, hanh va, hanh tai
thi hang » thi hanh, thi nang, thi hong
cham tuc » nham thuc, pham thuc, tham thuc
va hanh » van hanh, va thanh, va danh
tu sach » thu sach, su sach, te sach
hieu va » lieu va
tuc va » thuc va, truc va, tuc xa
vai ve » va ve, dai ve, vai va

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ((tai hang) or (thi hang)) xa hoi. ((hieu va) OR (hieu qua)) cham tuc va hanh vai ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((tai hang) OR (thi hang)) xa hoi. ((hieu va) OR (hieu qua)) cham tuc va hanh vai ve triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((tai hang) or (thi hang)) xa hoi. ((hieu va) OR (hieu qua)) cham tuc va hanh vai ve triet*".