Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
chieu tinh » trieu tinh, lieu tinh, chau tinh
nhung cong » dung cong, thong cong, hang cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
trinh tam » trinh tai, trinh toan, trinh cham
tam nhung » tham nhung, cam nhung, nam nhung
dan toan » van toan, dan than, manh toan
van quan » van ban

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

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