Perhaps you should try some spelling variations:
sach tham » sach nha
sach thi » sach thu, sach tai, sach thieu
anh dieu » hanh dieu, anh sieu, nganh dieu
dieu tra » dieu tri, kiem tra, dieu cua
hang xa » hoang xa, hang va, hang ca
hieu va » lieu va, hieu qua
va chat » van chat, va phat, cao chat
van anh » van thanh, tuan anh, van minh
tra tre » tran tren, tran tri, tran tro

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((sach thi) or (((sach tham) or (lanh dao)))) hang xa hoi. hieu va chat va van anh dieu tra tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach thi) OR (((sach tham) OR (lanh dao)))) hang xa hoi. hieu va chat va van anh dieu tra tre.
• Adding a wildcard symbol may retrieve word variants: te ((sach thi) or (((sach tham) or (lanh dao)))) hang xa hoi. hieu va chat va van anh dieu tra tre*.