Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nuoc ban » nuoc san, quoc ban, buoc ban
hanh tai » thanh tai, hang tai, han tai
hanh vai » hanh vi, hanh va, hanh van
cac nuoc » cap nuoc, hoc nuoc, dat nuoc
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
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 (vu bach)) ky nang xa hoi. hieu ve cac nuoc ban ((hanh vai) OR (hanh tai)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (vu bach)) ky nang xa hoi. hieu ve cac nuoc ban ((hanh vai) OR (hanh tai)) cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) or (vu bach)) ky nang xa hoi. hieu ve cac nuoc ban ((hanh vai) OR (hanh tai)) cua triet*".