Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hien xanh » hien hanh, hien nhanh, chieu xanh
cong manh » cong danh, duong manh, cong thanh
tang cua » mang cua, hang cua, tang luan
trong ca » trong cac, trong nha
toan cau » toan ban, toan tap, toan tai
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 ((tang cua) or (trong ca)) nhung cong manh ((toan cau) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - hanh ((tang cua) OR (trong ca)) nhung cong manh ((toan cau) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - hanh ((tang cua) or (trong ca)) nhung cong manh ((toan cau) or (toan cao))*.