Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sang » chieu sach, chieu xanh, hieu lang
thong cong » trong cong, tong cong, thong thong
hanh dang » hanh dong, hanh dung, hanh mang
cua thong » cua thuong, cua khong, cua tong
trinh han » trinh quan
anh dang » anh dong, anh dung, anh bang
han ban » hang ban, van ban, can ban

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 sang - ((hanh dang) or (anh dang)) cua thong cong trinh han ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sang - ((hanh dang) OR (anh dang)) cua thong cong trinh han ban.
• Adding a wildcard symbol may retrieve word variants: theo chieu sang - ((hanh dang) or (anh dang)) cua thong cong trinh han ban*.