Perhaps you should try some spelling variations:
luan phan » luan van, luan hoan
hieu luan » hieu luat, hieu quan, tieu luan
phan duoc » phan duc, phan quoc, nhan duoc
ma thanh » mai thanh, va thanh, ha thanh
tu sach » thu sach, su sach, tu cach
te sach » toc sach
duoc ma » duoc lam
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 (te sach)) ky nang x hoi. hieu luan phan duoc ma thanh ((vi cua) or (dai 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 luan phan duoc ma thanh ((vi cua) OR (dai cua)) triet.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) ky nang x hoi. hieu luan phan duoc ma thanh ((vi cua) or (dai cua)) triet*.