Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
thong cong » trong cong, tong cong, thong thong
hien xanh » hien hanh, hien nhanh, chieu xanh
thanh lap » thanh san, phan lap, thanh hai
trang va » tran van, hang va
va thong » va thuong, va phuong, he thong
toan ban » van ban

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 - hanh trang va thong cong trinh ((toan ban) or (thanh lap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - hanh trang va thong cong trinh ((toan ban) OR (thanh lap))*.