Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
hanh tranh » canh tranh, hanh trinh, hanh trang
nhung cong » dung cong, thong cong, hang cong
hoc chieu » hoc thieu, ho chieu, hoc hien
tranh cua » doanh cua, manh cua
cua nhung » va nhung
dan toan » van toan, manh toan, xuan toan
dan than » dan chan, ban than, van than

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu tinh - hanh tranh cua nhung cong ((((dan toan) or (dan than))) or (anh tuan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu tinh - hanh tranh cua nhung cong ((((dan toan) OR (dan than))) OR (anh tuan)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc chieu tinh - hanh tranh cua nhung cong ((((dan toan) or (dan than))) or (anh tuan)) cau*.