Perhaps you should try some spelling variations:
trinh chuan » trinh han, trinh quan, trinh luan
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trinh » canh tranh, hanh chinh
bang cong » bang song, hang cong, dung cong
dang cong » dung cong
ho chieu » theo chieu, hoc thieu, doi chieu
tran cau » tran chau, toan cau, ran cau

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 chuan ((bang cong) or (dang cong)) tan tran cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - hanh trinh chuan ((bang cong) OR (dang cong)) tan tran cau.
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - hanh trinh chuan ((bang cong) or (dang cong)) tan tran cau*.