Perhaps you should try some spelling variations:
vang doanh » van doanh, hang doanh, dung doanh
hanh trinh » canh tranh, hanh chinh
hien xanh » hien hanh, hien nhanh, chieu xanh
trinh cua » tinh cua, trinh luat, trinh quan
cong cong » cong dong, trong cong, dung cong
cong vang » cong lang, cong quang, cong ngang

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 cua cong cong vang doanh tai~.
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - hanh trinh cua cong cong vang doanh tai*.