Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
va thanh » gia thanh, ban thanh, va tinh
va hanh » van hanh, va danh, ban hanh
sach ty » sach y, sach tu, sach thu
qua cac » cua cac
te sach » toc sach
ty nang » ky nang, ty xang, ty hang
cac dac » cac dan, cac dai, cac bac
ma hoi » mai hoi, xa hoi, me hoi
di cua » dai cua, doi cua, de cua

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 ty nang ((ma hoi) or (ma hoa)). hieu qua cac dac ((va hanh) or (va thanh)) di cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang ((ma hoi) OR (ma hoa)). hieu qua cac dac ((va hanh) OR (va thanh)) di cua triet.
• Adding a wildcard symbol may retrieve word variants: te sach ty nang ((ma hoi) or (ma hoa)). hieu qua cac dac ((va hanh) or (va thanh)) di cua triet*.