Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
chat tuc » chat xuc, luat tuc, chat huu
va thieu » va thiet, va hieu, va tieu
sach ky » sac ky, sach y, sach ty
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
hieu ve » hieu van
hieu va » lieu va, hieu qua
va hanh » van hanh, va thanh, va danh
hanh va » hang va, hanh vi
tuc va » thuc va, truc va, tuc xa
va va » va van, va vua, va vai

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 ky dang xa hoi. ((hieu ve) or (hieu va)) chat tuc va hanh va va thieu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ky dang xa hoi. ((hieu ve) OR (hieu va)) chat tuc va hanh va va thieu.
• Adding a wildcard symbol may retrieve word variants: thuat sach ky dang xa hoi. ((hieu ve) or (hieu va)) chat tuc va hanh va va thieu*.