Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
hanh dam » thanh dam, hanh lam, hanh nam
van hanh » van thanh, ban hanh, van anh
thi hanh » thi thanh
nam tuc » nam thuc, nam truc, nam thuoc
tu sach » thu sach, te sach, tu cach
hieu ve » hieu va, hieu van
hanh xa » hanh va, hanh ma, hanh xu
su sach » so sach, vu sach
nam tu » nam thu, nam thuc
dam va » dam van, nam va, dam ha

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) or (su sach)) thi hanh xa hoi. hieu ve ((nam tuc) or (nam tu)) van hanh dam va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) thi hanh xa hoi. hieu ve ((nam tuc) OR (nam tu)) van hanh dam va triet.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (su sach)) thi hanh xa hoi. hieu ve ((nam tuc) or (nam tu)) van hanh dam va triet*.