Perhaps you should try some spelling variations:
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
cam tuc » cam xuc, cam tu, nam thuc
va danh » va dinh, va dan, va hanh
y nang » ky nang, ly nang, v nang
ve cam » ve cham, ve cac, va cam
tuc va » thuc va, truc va, tuc xa
vai va » mai va, dai va, lai va
hai va » hai van, thai va, hoi va

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 y nang xa hoi. hieu ve cam tuc va danh ((vai va) or (hai va)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang xa hoi. hieu ve cam tuc va danh ((vai va) OR (hai va)) triet.
• Adding a wildcard symbol may retrieve word variants: su sach y nang xa hoi. hieu ve cam tuc va danh ((vai va) or (hai va)) triet*.