Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh tai » thanh tai, hang tai, han tai
hieu ve » hieu va, hieu van
tai cua » thai cua, tai cuc, tri cua
te sach » toc sach
nang xa » nang x, lang xa, nang ma
va hanh » van hanh, va thanh, va danh
tang ma » mang may, tang van
dam tu » nam tu, cam tu, tam tu
te sac » te cac, te san
ve dam » ven dam, ke dam, va dam

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sac) OR (te sach)) ky ((nang xa) or (tang ma)) hoi. hieu ve dam tu va hanh tai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sac) OR (te sach)) ky ((nang xa) OR (tang ma)) hoi. hieu ve dam tu va hanh tai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sac) OR (te sach)) ky ((nang xa) or (tang ma)) hoi. hieu ve dam tu va hanh tai cua triet".
• Adding a wildcard symbol may retrieve word variants: ((te sac) OR (te sach)) ky ((nang xa) or (tang ma)) hoi. hieu ve dam tu va hanh tai cua triet*.