Perhaps you should try some spelling variations:
phuong tinh » phuong trinh, phuong binh, khuong tinh
chieu sang » chieu sach, hieu lang, nhieu tang
chieu xanh » chieu sach, chieu tinh, hieu manh
cua hoang » quan hoang, tuan hoang, xuan hoang
cua hang » cua dang, cua nhung, cua cong
toan cao » toan ban, toan tap

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

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