Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hoc sach » hoc sinh, hoc cac, hoc anh
qua cham » qua hai, qua cac, va cham
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
qua cam » qua cac, qua ca, qua cai
tuc van » thuc van, truc van, tuc va
vi cua » vai cua, di cua
x hoi » xa hoi, o hoi, x ho

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 (hoc sach)) ky nang x hoi. hieu ((qua cam) OR (qua cham)) tuc van hanh vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (hoc sach)) ky nang x hoi. hieu ((qua cam) OR (qua cham)) tuc van hanh vi cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) or (hoc sach)) ky nang x hoi. hieu ((qua cam) OR (qua cham)) tuc van hanh vi cua triet".
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (hoc sach)) ky nang x hoi. hieu ((qua cam) OR (qua cham)) tuc van hanh vi cua triet*.