Perhaps you should try some spelling variations:
thuong luong » theo luong, cong luong, thong thuong
chieu sang » chieu sach, chieu xanh, hieu lang
doi chieu » doc hieu, doi chi, ho chieu
luong dan » huong dan, luong dao, luong van
manh cua » doanh cua
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap
ban cua » ban quan

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

• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sang - nhanh ((manh cua) OR (ban cua)) thuong luong dan toan cau~.
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - nhanh ((manh cua) or (ban cua)) thuong luong dan toan cau*.