Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh vai » thanh hai, thanh van, thanh tai
van thanh » ban thanh, van tuan
qua than » qua thanh, qua phan, quan thanh
qua tan » quai tan, qua tang, qua ban
vai cua » dai cua, hai cua, lai cua
luu van » cuu van, luan van, luu hanh
tu sach » thu sach, su sach, tu cach
te sach » toc sach
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: ((tu sach) or (te sach)) ky nang x hoi. hieu ((qua than) OR (qua tan)) luu van thanh vai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) ky nang x hoi. hieu ((qua than) OR (qua tan)) luu van thanh vai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (te sach)) ky nang x hoi. hieu ((qua than) OR (qua tan)) luu van thanh vai cua triet".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) ky nang x hoi. hieu ((qua than) OR (qua tan)) luu van thanh vai cua triet*.