Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
nhung cong » dung cong, thong cong, hang cong
thanh toan » thanh hoa, thanh san, tinh toan
cua nhung » va nhung
hoc sach » hoc sinh, hoc anh
anh mang » hanh mang, anh dang, anh nang
anh bang » anh hoang, anh quang, tinh bang
toan cao » toan ban, toan tap
hoc cac » hoc cao

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

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