Perhaps you should try some spelling variations:
nhanh lang » nhanh quang, nhanh thang, nhan dang
hanh trang » thanh trung, canh tranh, hanh trinh
nhung cong » dung cong, thong cong, hang cong
tieu xanh » tieu danh, chieu xanh, dieu hanh
tac doanh » cac doanh, toan doanh, trai doanh
tac danh » sach danh, cac doanh, cac dan

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu xanh - ((nhanh lang) or (hanh trang)) va nhung cong ((tac doanh) OR (tac danh)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - ((nhanh lang) OR (hanh trang)) va nhung cong ((tac doanh) OR (tac danh)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - ((nhanh lang) or (hanh trang)) va nhung cong ((tac doanh) OR (tac danh)) cao".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - ((nhanh lang) or (hanh trang)) va nhung cong ((tac doanh) OR (tac danh)) cao*.