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 » theo tieu, thai tim, thao tin
tim hanh » tiem hanh, kim thanh, tien hanh
hanh ban » thanh ban, hanh san, hanh han
hang ban » hang luan, hang va, hang dau
hang tai » hang va, dung tai
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 hanh - ((hanh ban) or (((hang ban) OR (hang tai)))) cua nhung cong quang tan ca~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tim hanh - ((hanh ban) OR (((hang ban) OR (hang tai)))) cua nhung cong quang tan ca.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tim hanh - ((hanh ban) or (((hang ban) OR (hang tai)))) cua nhung cong quang tan ca".
• Adding a wildcard symbol may retrieve word variants: theo tim hanh - ((hanh ban) or (((hang ban) OR (hang tai)))) cua nhung cong quang tan ca*.