Perhaps you should try some spelling variations:
cong ngang » cong nhan, cong quang, cong lang
hien xanh » hien hanh, hien nhanh, chieu xanh
manh tung » manh hung, thanh tung
cua nhung » va nhung
cong vang » cong lang, cong quang, cong san
tung cua » trung cua, tuong cua, dung cua
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 - manh tung cua nhung ((cong vang) or (cong ngang)) tuan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - manh tung cua nhung ((cong vang) OR (cong ngang)) tuan cau*.