Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hanh trung » thanh trung, hanh trang, manh trung
thong cong » trong cong, tong cong, thong thong
trung cua » truong cua, trung tuan, trung cap
cua thong » cua thuong, cua khong, cua tong
ho chieu » theo chieu, hoc thieu, doi chieu
cong tac » cong ty
than tap » toan tap, han tap, phan tap
pham tai » pham thi, pham van

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 - hanh trung cua thong cong tac ((than tap) or (pham tai))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - hanh trung cua thong cong tac ((than tap) OR (pham tai)).
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - hanh trung cua thong cong tac ((than tap) or (pham tai))*.