Perhaps you should try some spelling variations:
thien van » thi van
danh hai » dang hai, lanh hai, manh hai
ve triet » va trien, su triet
so sach » so sanh, bo sach, co sach
van cau » van dau, van hau, van chat
cau tuc » cau truc, cau tu, cau luc
va danh » va dinh, va dan, va hanh
su sach » vu sach
y nang » ky nang, ly nang, may nang
v nang » va nang, vu nang, van nang
tuc va » thuc va, truc va, tuc xa
hai ve » hoai ve, hai va, hai vu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) or (so sach)) ((y nang) OR (v nang)) xa hoi. thien van cau tuc va danh hai ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) ((y nang) OR (v nang)) xa hoi. thien van cau tuc va danh hai ve triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (so sach)) ((y nang) OR (v nang)) xa hoi. thien van cau tuc va danh hai ve triet".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (so sach)) ((y nang) OR (v nang)) xa hoi. thien van cau tuc va danh hai ve triet*.