Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
cong thanh » dong thanh, cong trinh, cong tan
thanh toan » thanh hoa, thanh san, tinh toan
hanh mang » nhanh mang, hanh trang, nhanh lang
cua nhung » va nhung
theo hoc » thao hoc, theo hop, te hoc
hoc sach » hoc sinh, hoc cac, hoc anh
anh mang » anh dang, anh nang, anh sang
anh bang » anh hoang, anh quang, tinh bang
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: theo hoc sach - ((((anh mang) OR (hanh 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 - ((((anh mang) OR (hanh 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 - ((((anh mang) OR (hanh mang))) or (anh bang)) cua nhung cong thanh toan cao".
• Adding a wildcard symbol may retrieve word variants: theo hoc sach - ((((anh mang) OR (hanh mang))) or (anh bang)) cua nhung cong thanh toan cao*.