Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, truong thanh
tieu xanh » tieu danh, chieu xanh, dieu hanh
hanh mang » nhanh mang, hanh trang, nhanh lang
mang van » dang van, tang van, lang van
van dung » van dong, xay dung, tin dung
cong tan » cong tac, cong san, cong ty
than ban » thanh ban, toan ban, than man

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu xanh - hanh mang van dung ((cong tan) OR (cong thanh)) than ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - hanh mang van dung ((cong tan) OR (cong thanh)) than ban".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - hanh mang van dung ((cong tan) OR (cong thanh)) than ban*.