Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
tra trinh » qua trinh
trinh han » trinh quan
hanh tra » thanh tra, khanh tra, hanh tram
han cong » phan cong, hang cong, hanh cong
cong van » cong vang, cong san, song van
tuan cao » toan cao, juan cao, quang cao
quan cau » quang cao, toan cau, quan ha

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

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