Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
mang vua » mang cua, mang va, bang va
cong tac » cong ty
chan tu » phan tu, han tu, chon tu
choi tu » hoi tu, cho tu, chon tu

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 - cach ((hang va) or (mang vua)) dung cong tac ((chan tu) or (choi tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - cach ((hang va) OR (mang vua)) dung cong tac ((chan tu) OR (choi tu)).
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - cach ((hang va) or (mang vua)) dung cong tac ((chan tu) or (choi tu))*.