Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nuoc ban » nuoc san, quoc ban, buoc ban
thanh de » hanh de, thanh ve, thanh do
thanh di » thanh doi, thanh do, thanh dinh
cac nuoc » cap nuoc, hoc nuoc, dat nuoc
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
hoc anh » hoc nganh, hoc nhanh, ngoc anh
te sach » toc sach
ve cac » va cac, vien cac

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) or (hoc anh)) ky nang xa hoi. hieu ve cac nuoc ban ((thanh di) or (thanh de)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (hoc anh)) ky nang xa hoi. hieu ve cac nuoc ban ((thanh di) OR (thanh de)) cua triet.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (hoc anh)) ky nang xa hoi. hieu ve cac nuoc ban ((thanh di) or (thanh de)) cua triet*.