Perhaps you should try some spelling variations:
thuyet mach » thuyet xac, thuyet cac, thuyet anh
hoc thuyet » hoc chuyen
nhung cong » dung cong, hang cong, nhung don
thong cong » trong cong, tong cong, thong thong
thanh toan » thanh hoa, thanh san, tinh toan
hanh tang » hanh trang, anh tang, hanh mang
tang luan » dung luan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thuyet mach - hanh tang luan ((nhung cong) OR (thong cong)) thanh toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thuyet mach - hanh tang luan ((nhung cong) OR (thong cong)) thanh toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc thuyet mach - hanh tang luan ((nhung cong) OR (thong cong)) thanh toan ban*.