Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
va thanh » gia thanh, ban thanh, va tinh
vai cua » dai cua, hai cua, lai cua
va hanh » van hanh, va danh, ban hanh
te sach » toc sach
hieu ve » hieu va, hieu van
lang xa » lang ha, dang xay, lang van
nang xa » nang x, nang ma, mang xa
cam luc » cam xuc, cau luc
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 sach y ((nang xa) or (lang xa)) hoi. hieu ve cam luc ((va hanh) OR (va thanh)) vai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y ((nang xa) OR (lang xa)) hoi. hieu ve cam luc ((va hanh) OR (va thanh)) vai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y ((nang xa) or (lang xa)) hoi. hieu ve cam luc ((va hanh) OR (va thanh)) vai cua triet".
• Adding a wildcard symbol may retrieve word variants: te sach y ((nang xa) or (lang xa)) hoi. hieu ve cam luc ((va hanh) OR (va thanh)) vai cua triet*.