Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
cong quang » luong quang, thong quang, duong quang
cua nhung » va nhung
quang tan » quang tuan, quang tran, quang toan
theo tim » thai tim, theo tu
thao tin » thai tinh, thao kinh, thao tung
hanh ban » thanh ban, hang ban, hanh san
ban cua » ban quan
tan ca » tan cua, tang ca, dan ca

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((theo tim) OR (thao tin))) or (theo tieu)) hanh - hanh ban cua nhung cong quang tan ca~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((theo tim) OR (thao tin))) OR (theo tieu)) hanh - hanh ban cua nhung cong quang tan ca.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((theo tim) OR (thao tin))) or (theo tieu)) hanh - hanh ban cua nhung cong quang tan ca".
• Adding a wildcard symbol may retrieve word variants: ((((theo tim) OR (thao tin))) or (theo tieu)) hanh - hanh ban cua nhung cong quang tan ca*.