Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
hien xanh » hien hanh, hien nhanh, chieu xanh
tac thong » tac thuong, tac trong, tac chong
cong tac » cong ty
cong dan » cong san, cong tan, huong dan
dan chan » dan gian, dan ca, van chat
chan lap » phan lap, thanh lap, dan lap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien xanh - thanh cong tac thong cong dan chan lap~.
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - thanh cong tac thong cong dan chan lap*.