Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trinh » canh tranh, hanh chinh
hoac khong » hoa khong, hoc khong, hay khong
hua khong » hoa khong, cua khong, phuc khong
ho chieu » theo chieu, hoc thieu, doi chieu
cong tan » cong tac, cong san, cong thanh
tran tan » tran tuan, tran van, tran thanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu xanh - hanh trinh ((hua khong) OR (hoac khong)) cong tan tran tan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu xanh - hanh trinh ((hua khong) OR (hoac khong)) cong tan tran tan".
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - hanh trinh ((hua khong) OR (hoac khong)) cong tan tran tan*.