Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hieu van » hieu va, thien van, lieu va
hanh vai » hanh vi, hanh tai, hanh van
te sach » toc sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
van cac » van hac, van cau, van bac
hanh va » hang va, hanh vi
cac le » cach le, cac he, mac le

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 ky nang xa hoi. hieu van cac le van ((hanh vai) or (hanh va)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang xa hoi. hieu van cac le van ((hanh vai) OR (hanh va)) cua triet.
• Adding a wildcard symbol may retrieve word variants: te sach ky nang xa hoi. hieu van cac le van ((hanh vai) or (hanh va)) cua triet*.