Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hanh tranh » canh tranh, hanh trinh, hanh trang
cua phuong » cuu phuong, cuc phuong, luan phuong
tranh cua » doanh cua, manh cua
ho chieu » theo chieu, hoc thieu, doi chieu
cong tap » cuong tap, cong tan, tong tap
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: ho chieu sang - hanh tranh cua phuong ((cong tap) or (((cong tac) OR (cong ty)))) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - hanh tranh cua phuong ((cong tap) OR (((cong tac) OR (cong ty)))) toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sang - hanh tranh cua phuong ((cong tap) or (((cong tac) OR (cong ty)))) toan cao".
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - hanh tranh cua phuong ((cong tap) or (((cong tac) OR (cong ty)))) toan cao*.