Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
hien xanh » hien hanh, hien nhanh, chieu xanh
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
va thong » va thuong, va phuong, he thong
cong dan » cong san, cong tan, huong dan
toan cau » toan cao, toan tap, toan tai
tinh va » tich va, trinh van, trinh vat

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 tinh va thong cong dan ((toan cau) or (((toan ban) or (van ban))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - hanh tinh va thong cong dan ((toan cau) OR (((toan ban) OR (van ban)))).
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - hanh tinh va thong cong dan ((toan cau) or (((toan ban) or (van ban))))*.