Perhaps you should try some spelling variations:
hanh tai » thanh tai, hang tai, han tai
sach dao » lanh dao
va hanh » van hanh, va thanh, va danh
cam tuc » cam tu, nam thuc, dam thuc
hieu ve » hieu va, hieu van
sach ly » sach y, sach lo, sach ty
hang xa » hoang xa, hang va, hang ca
cuc tre » duc tre, cua tre, cuu tre

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 ly) or (sach dao)) hang xa hoi. hieu ve ((cam tuc) OR (cam xuc)) va hanh tai cuc tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ly) OR (sach dao)) hang xa hoi. hieu ve ((cam tuc) OR (cam xuc)) va hanh tai cuc tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach ly) or (sach dao)) hang xa hoi. hieu ve ((cam tuc) OR (cam xuc)) va hanh tai cuc tre*".