Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
hanh trang » canh tranh, hanh trinh, minh trang
cuong danh » cuon danh, huong dan, cuong linh
cong manh » cong danh, duong manh, cong thanh
ho chieu » theo chieu, hoc thieu, doi chieu
toan tap » toan ban

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 trang) or (thanh trung)) va nhung ((cong manh) or (cuong danh)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - ((hanh trang) OR (thanh trung)) va nhung ((cong manh) OR (cuong danh)) toan tap.
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - ((hanh trang) or (thanh trung)) va nhung ((cong manh) or (cuong danh)) toan tap*.