Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh vai » hanh vi, hanh va, hanh tai
thi hang » thi hanh, thi nang, thi hong
dan hanh » dang hanh, dan khanh, dan thanh
thuc dan » thuc hanh, hoc dan, thuc vat
hieu ve » hieu va, hieu van
vai cua » dai cua, hai cua, lai cua
te sach » toc sach
hieu le » hieu he, hieu ly, tieu le
hang xa » hoang xa, hang va, hang ca
su sach » so sach, vu sach

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) or (su sach)) thi hang xa hoi. ((hieu le) OR (hieu ve)) am thuc dan hanh vai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (su sach)) thi hang xa hoi. ((hieu le) OR (hieu ve)) am thuc dan hanh vai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) or (su sach)) thi hang xa hoi. ((hieu le) OR (hieu ve)) am thuc dan hanh vai cua triet".
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (su sach)) thi hang xa hoi. ((hieu le) OR (hieu ve)) am thuc dan hanh vai cua triet*.