Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
chieu tinh » trieu tinh, lieu tinh, chau tinh
trinh quan » tinh quang, trinh luat, trinh han
hieu manh » chieu xanh, hieu nganh, dieu hanh
quan lang » quan hoang, gian lang, quan luan
lang cong » dang cong, bang cong, hang cong
van toan » van tan, van thanh, manh toan
van tuan » van quan, van ban, anh tuan

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((hieu manh) or (chieu tinh)) - hanh trinh quan lang cong ((van toan) OR (van tuan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((hieu manh) OR (chieu tinh)) - hanh trinh quan lang cong ((van toan) OR (van tuan)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((hieu manh) or (chieu tinh)) - hanh trinh quan lang cong ((van toan) OR (van tuan)) cao".
• Adding a wildcard symbol may retrieve word variants: theo ((hieu manh) or (chieu tinh)) - hanh trinh quan lang cong ((van toan) OR (van tuan)) cao*.