Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
hanh tranh » canh tranh, hanh trinh, hanh trang
tong thong » thong thong, dong thong, cong thong
tranh cua » doanh cua, manh cua
dan nhanh » dan hanh, dan thanh, day nhanh
dan khanh » dang khanh, van khanh, dat khanh
cua tong » cua cong, cua dong, cua nong

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

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