Perhaps you should try some spelling variations:
trien cong » thien cong
thieu xanh » chieu xanh, hieu manh, thien anh
hanh tram » hanh tam, hanh trang, thanh tran
dang cong » dung cong
hanh cham » thanh pham, hanh lam, hanh nam
tram van » tran van, tam van, trang van
van hanh » van thanh, ban hanh, van anh

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 tram van ((dang cong) or (trien cong)) van hanh cham~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu xanh - hanh tram van ((dang cong) OR (trien cong)) van hanh cham*.