Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hieu manh » hieu nganh, dieu hanh, hien hanh
tranh cua » doanh cua, manh cua
cua thong » cua thuong, cua khong, cua tong
thong dan » thong van, tuong dan, thong den
than cao » toan cao, than cap, than sao
thai cao » tai cao, thoai cac, thuat cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((hieu manh) or (chieu xanh)) - canh tranh cua thong thong dan ((than cao) OR (thai cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((hieu manh) OR (chieu xanh)) - canh tranh cua thong thong dan ((than cao) OR (thai cao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((hieu manh) or (chieu xanh)) - canh tranh cua thong thong dan ((than cao) OR (thai cao))".
• Adding a wildcard symbol may retrieve word variants: theo ((hieu manh) or (chieu xanh)) - canh tranh cua thong thong dan ((than cao) OR (thai cao))*.