Perhaps you should try some spelling variations:
sach tham » sach nha
va triet » va thiet, va trien, ve triet
sach thu » sach thue, sach thieu, cach thuc
va hanh » van hanh, va thanh, va danh
ve cham » va cham, ve chat, vu cham
hanh xa » hanh va, hanh ma, hanh xu
xuc va » duc va, tuc va, luc va
ve cam » ve cac, va cam, ve cai
vi va » vi van, vai va, vu va

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach thu) or (sach tham)) hanh xa hoi. hieu ((ve cam) or (ve cham)) xuc va hanh vi va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach thu) OR (sach tham)) hanh xa hoi. hieu ((ve cam) OR (ve cham)) xuc va hanh vi va triet.
• Adding a wildcard symbol may retrieve word variants: tu ((sach thu) or (sach tham)) hanh xa hoi. hieu ((ve cam) or (ve cham)) xuc va hanh vi va triet*.