Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh tai » thanh tai, hang tai, han tai
tai cua » thai cua, tai cuc, tri cua
va hanh » van hanh, va thanh, va danh
cam duc » cam xuc, cao duc, pham duc
hieu va » lieu va, hieu qua
te sach » toc sach
lang ha » long ha
nang xa » lang xa, nang ma, mang xa
va cam » va cham, va cac, va cao

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 (nang x))) or (lang ha)) hoi. hieu va cam duc va hanh tai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y ((((nang xa) OR (nang x))) OR (lang ha)) hoi. hieu va cam duc va hanh tai cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y ((((nang xa) OR (nang x))) or (lang ha)) hoi. hieu va cam duc va hanh tai cua triet*".