Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hieu manh » chieu xanh, hieu nganh, dieu hanh
tranh cua » doanh cua, manh cua
cua nhung » va nhung
tuong dan » huong dan, xuong dan, truong dai
tung dan » dung dan, huong dan, trung dai
toan cau » 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 ((hieu manh) or (chieu sang)) - canh tranh cua nhung ((tuong dan) or (tung dan)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu manh) OR (chieu sang)) - canh tranh cua nhung ((tuong dan) OR (tung dan)) toan cau.
• Adding a wildcard symbol may retrieve word variants: ho ((hieu manh) or (chieu sang)) - canh tranh cua nhung ((tuong dan) or (tung dan)) toan cau*.