Perhaps you should try some spelling variations:
bac truc » ba truc, bac trung, sach truc
hieu van » hieu va, thien van, lieu va
su sach » so sach, vu sach
va hanh » van hanh, va thanh, va danh
truc va » thuc va, thuc vat, trung va
van bac » van ban, van bao, van hac
so sanh » do sanh
ly nang » ky nang, ly hang, ly vang
y nang » ky nang, v nang, may nang
vi cua » vai cua, di cua
cua te » cua tu

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 sanh)) ((y nang) or (ly nang)) xa hoi. hieu van bac truc va hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sanh)) ((y nang) OR (ly nang)) xa hoi. hieu van bac truc va hanh vi cua te.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (so sanh)) ((y nang) or (ly nang)) xa hoi. hieu van bac truc va hanh vi cua te*.