Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
ban thanh » ban hanh, ban hang
su triet » su viet, su tien, ve triet
thu sach » tu sach, thuat sach, thuoc sach
tuc ban » thuc ban, truc ban, tu ban
cam tuc » cam xuc, cam tu, nam thuc
te sach » toc sach
hieu ve » hieu va, hieu van
tang xa » trang xa, tang ma, lang xa
ky tang » ky nang, ky dang, kho tang
tai su » tai so, tai tu, lai su

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) or (thu sach)) ky tang xa hoi. ((hieu ve) or (hieu qua)) cam tuc ban thanh tai su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (thu sach)) ky tang xa hoi. ((hieu ve) OR (hieu qua)) cam tuc ban thanh tai su triet.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (thu sach)) ky tang xa hoi. ((hieu ve) or (hieu qua)) cam tuc ban thanh tai su triet*.