Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
truong anh » trong anh, trung anh, truong thanh
hien xanh » hien hanh, hien nhanh, chieu xanh
trinh cua » tinh cua, trinh luat, trinh quan
trong tan » trong quan, trong cac, trong ca
tuan cau » toan cau, quan cau, tuan cu

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 ((trong tan) or (truong anh)) ((tuan cau) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - hanh trinh cua cong ((trong tan) OR (truong anh)) ((tuan cau) OR (van ban)).
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - hanh trinh cua cong ((trong tan) or (truong anh)) ((tuan cau) or (van ban))*.