Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hien xanh » hien hanh, hien nhanh, chieu xanh
trinh qua » trinh quan, trinh cua, trinh quang
tong cong » trong cong, cong cong, dung cong
qua tong » qua trong, qua song, qua cong
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan cau » toan cao, toan ban, toan tap

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 trinh qua tong cong san toan cau~.
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - hanh trinh qua tong cong san toan cau*.