Perhaps you should try some spelling variations:
thieu xanh » hieu manh, thien anh
thien danh » thien anh, thien dang, thien thanh
chieu xanh » chieu sach, chieu sang, chieu tinh
nhung cong » dung cong, thong cong, hang cong
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong tan » cong tac, cong san, cong thanh
tan chan » dan chan, ban chan, can chan
chan tu » phan tu, han tu, chon tu

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) OR (thien danh))) or (chieu xanh)) - canh tranh cua nhung cong tan chan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((thieu xanh) OR (thien danh))) OR (chieu xanh)) - canh tranh cua nhung cong tan chan tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((((thieu xanh) OR (thien danh))) or (chieu xanh)) - canh tranh cua nhung cong tan chan tu".
• Adding a wildcard symbol may retrieve word variants: hoc ((((thieu xanh) OR (thien danh))) or (chieu xanh)) - canh tranh cua nhung cong tan chan tu*.