Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
hieu ve » hieu va, hieu van
cau loc » cau hoc, cau luc, cau long
hau loc » phau hoc
huu loc » muu luoc
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
vi cua » vai cua, di cua
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach y nang x hoi. hieu ve ((cau loc) or (((hau loc) OR (huu loc)))) va hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach y nang x hoi. hieu ve ((cau loc) OR (((hau loc) OR (huu loc)))) va hanh vi cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach y nang x hoi. hieu ve ((cau loc) or (((hau loc) OR (huu loc)))) va hanh vi cua tre*".