Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh van » thanh san, thanh toan, thanh phan
ban thanh » ban hanh, ban hang
quoc ban » quoc bao, quoc lan, quoc quan
cao quoc » cac quoc, cao thuoc, han quoc
van cua » vang cua, ban cua, dan cua
sach ky » sac ky, sach ty, sach kem
hieu va » lieu va
nang xa » nang x, lang xa, nang ma

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 ky) OR (sach y)) nang xa hoi. ((hieu va) or (hieu qua)) cao quoc ban thanh van cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sach y)) nang xa hoi. ((hieu va) OR (hieu qua)) cao quoc ban thanh van cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) OR (sach y)) nang xa hoi. ((hieu va) or (hieu qua)) cao quoc ban thanh van cua triet".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) OR (sach y)) nang xa hoi. ((hieu va) or (hieu qua)) cao quoc ban thanh van cua triet*.