Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
cong tinh » cong trinh, cong vinh, long tinh
ho chieu » theo chieu, hoc thieu, doi chieu
van cong » van dong, van phong, phan cong
toan ban » van ban
cua van » cua ban, cua vat, cua dan

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 - ((thanh trung) or (thanh cong)) cua van cong tinh ((toan tap) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - ((thanh trung) OR (thanh cong)) cua van cong tinh ((toan tap) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - ((thanh trung) or (thanh cong)) cua van cong tinh ((toan tap) or (toan ban))*.