Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
theo chieu » theo tieu, ho chieu, theo chu
chieu han » chieu sang, chieu xanh, phieu phan
cong tinh » cong trinh, cong vinh, long tinh
tang cua » hang cua, tang luan, thong cua
mang cua » manh cua, dung cua, ban cua
toan ban » van ban
toan cao » toan tap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu han - hanh ((tang cua) or (mang cua)) nhung cong tinh ((toan ban) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu han - hanh ((tang cua) OR (mang cua)) nhung cong tinh ((toan ban) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: theo chieu han - hanh ((tang cua) or (mang cua)) nhung cong tinh ((toan ban) or (toan cao))*.