Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, thien anh, thien danh
chieu tinh » trieu tinh, lieu tinh, chau tinh
nhung cong » dung cong, thong cong, hang cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
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 ((thieu xanh) or (((hieu manh) or (chieu tinh)))) - canh tranh cua nhung cong tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (((hieu manh) OR (chieu tinh)))) - canh tranh cua nhung cong tan toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (((hieu manh) or (chieu tinh)))) - canh tranh cua nhung cong tan toan cao*.