Perhaps you should try some spelling variations:
khanh luan » khanh thuan, doanh luan, hang luan
nhung cong » dung cong, thong cong, hang cong
thanh toan » thanh hoa, thanh san, tinh toan
hoc chinh » hoan chinh, hoc kinh
hung cong » hung cuong, phung cong, dung cong
toan cau » toan cao, toan ban, toan tap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc chinh) OR (hoc sinh)) sach - khanh luan van ((hung cong) or (nhung cong)) thanh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chinh) OR (hoc sinh)) sach - khanh luan van ((hung cong) OR (nhung cong)) thanh toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc chinh) OR (hoc sinh)) sach - khanh luan van ((hung cong) or (nhung cong)) thanh toan cau".
• Adding a wildcard symbol may retrieve word variants: ((hoc chinh) OR (hoc sinh)) sach - khanh luan van ((hung cong) or (nhung cong)) thanh toan cau*.