Perhaps you should try some spelling variations:
thanh toan » thanh hoa, thanh san, tinh toan
thanh tai » thanh hai, doanh tai, thanh san
ve triet » va trien, su triet
lam duc » lam duoc, pham duc, nam duoc
duc gia » quoc gia
so sach » so sanh, bo sach, co sach
hieu va » lieu va, hieu qua
y nang » ky nang, ly nang, may nang
v nang » va nang, vu nang, van nang
va lam » van lam, va lap

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ((y nang) OR (v nang)) xa hoi. hieu va lam duc gia ((thanh tai) or (thanh toan)) ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ((y nang) OR (v nang)) xa hoi. hieu va lam duc gia ((thanh tai) OR (thanh toan)) ve triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ((y nang) OR (v nang)) xa hoi. hieu va lam duc gia ((thanh tai) or (thanh toan)) ve triet*".