Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
sach thi » sach thu, sach thieu, sach tham
ve triet » va trien, su triet
hanh cac » hang cac, hanh cat, hanh cham
sach tai » sach bai, sach tham, sach dao
cac hoi » cac thoi, cac khoi, cau hoi
xa hanh » xa thanh, xa khanh, va hanh
hieu va » lieu va, hieu qua
cac tu » cac thu, cach tu, cac du
vai ve » va ve, dai ve, vai 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 thi) or (sach tai)) hanh cac hoi. hieu va ((cac tu) or (cac tro)) xa hanh vai ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((sach thi) OR (sach tai)) hanh cac hoi. hieu va ((cac tu) OR (cac tro)) xa hanh vai ve triet.
• Adding a wildcard symbol may retrieve word variants: toc ((sach thi) or (sach tai)) hanh cac hoi. hieu va ((cac tu) or (cac tro)) xa hanh vai ve triet*.