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