Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
tieu sang » chieu sang, tieu dung, tiem nang
hanh dang » hanh dong, hanh dung, hanh mang
cua nhung » va nhung
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 tieu sang - ((hanh dang) or (anh dang)) cua nhung cong trinh han ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sang - ((hanh dang) OR (anh dang)) cua nhung cong trinh han ban.
• Adding a wildcard symbol may retrieve word variants: theo tieu sang - ((hanh dang) or (anh dang)) cua nhung cong trinh han ban*.