Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hinh sinh » tinh sinh, hinh dinh, hinh kinh
cua trong » cua truong, cua trung, qua trong
ho chieu » theo chieu, hoc thieu, doi chieu
sinh cua » manh cua, dinh cuu, sinh va
cong tac » cong ty
toan ban » van 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 - hinh sinh cua trong ((cong san) or (cong tac)) ((toan tap) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - hinh sinh cua trong ((cong san) OR (cong tac)) ((toan tap) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - hinh sinh cua trong ((cong san) or (cong tac)) ((toan tap) or (toan ban))*.