Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
tranh cua » doanh cua, manh cua
cua nhung » va nhung
nhanh bac » nhanh ha
cong tac » cong ty
nhanh va » hanh va, nhan va, nhanh ha

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu xanh - canh tranh cua nhung ((cong san) or (cong tac)) ((nhanh bac) or (nhanh va))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - canh tranh cua nhung ((cong san) OR (cong tac)) ((nhanh bac) OR (nhanh va)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - canh tranh cua nhung ((cong san) or (cong tac)) ((nhanh bac) or (nhanh va))*.