Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
anh quang » anh xquang, anh quan, nhanh quang
van nhung » van nhuong, va nhung, van hung
anh bang » anh hoang, tinh bang, anh dong
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cao » toan ban, toan tap
thao bo » tao bo, thac bao, thao hoc
theo bo » theo doi, theo don, theo hop

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

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