Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
canh minh » canh tinh, canh binh, chinh minh
ho chieu » theo chieu, hoc thieu, doi chieu
cong tac » cong ty
toan cau » toan ban, toan tap, toan tai
toan cao » toan ban, toan tap
minh va » tinh va, sinh va, sinh vat

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 - canh minh va nhung ((cong tac) or (huong dan)) ((toan cau) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - canh minh va nhung ((cong tac) OR (huong dan)) ((toan cau) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - canh minh va nhung ((cong tac) or (huong dan)) ((toan cau) or (toan cao))*.