Perhaps you should try some spelling variations:
quan hanh » quan thanh, quang thanh, quang khanh
cong manh » cong danh, duong manh, cong thanh
chu xanh » chu manh, chieu xanh, chua xang
hanh ban » thanh ban, hang ban, hanh san
ban quan » van quan
toan cau » toan cao, toan ban, toan tap
chu han » chu van

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chu xanh) or (chu han)) - hanh ban quan hanh ((cong manh) or (cong trinh)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu xanh) OR (chu han)) - hanh ban quan hanh ((cong manh) OR (cong trinh)) toan cau.
• Adding a wildcard symbol may retrieve word variants: theo ((chu xanh) or (chu han)) - hanh ban quan hanh ((cong manh) or (cong trinh)) toan cau*.