Perhaps you should try some spelling variations:
sach thuat » sach tham, dich thuat, cac thuat
thuat mang » thuat bang, thuat nang, thuat trang
toc sach » hoc sach, doc sach, thuoc sach
hanh lai » hanh lam, hanh tai, thanh lap
chau tre » chay tren, chau tho, cho tre
mang xa » lang xa, mang may, dang xay
hieu va » lieu va
va hanh » van hanh, va thanh, va danh
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach thuat mang xa hoi. ((hieu va) or (hieu qua)) cam xuc va hanh lai chau tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach thuat mang xa hoi. ((hieu va) OR (hieu qua)) cam xuc va hanh lai chau tre.
• Adding a wildcard symbol may retrieve word variants: toc sach thuat mang xa hoi. ((hieu va) or (hieu qua)) cam xuc va hanh lai chau tre*.