Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh dai » thanh hai, thanh tai, thanh dat
nang xa » lang xa, nang ma, mang xa
hieu ve » hieu va, hieu van
tuc ban » thuc ban, truc ban, tu ban
te ban » te bao
te sai » te tai, te bai, te lai
sai ky » sac ky
ve cam » ve cham, ve cac, va cam

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: te sai ky ((nang xa) OR (nang x)) hoi. hieu ve cam ((tuc ban) or (te ban)) thanh dai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sai ky ((nang xa) OR (nang x)) hoi. hieu ve cam ((tuc ban) OR (te ban)) thanh dai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sai ky ((nang xa) OR (nang x)) hoi. hieu ve cam ((tuc ban) or (te ban)) thanh dai cua triet".
• Adding a wildcard symbol may retrieve word variants: te sai ky ((nang xa) OR (nang x)) hoi. hieu ve cam ((tuc ban) or (te ban)) thanh dai cua triet*.