Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
tran tuan » tran xuan, tran quang, tran thanh
tan khang » van khang, tao khang, tinh khang
khang dau » hang dau, phan dau, xang dau
cong tan » cong tac, cong san, cong thanh
ho lieu » co lieu, ho kieu, ho chieu
so lieu » so dieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho lieu) or (so lieu)) tinh - thanh ((trung tam) or (tran tuan)) nhung cong tan khang dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho lieu) OR (so lieu)) tinh - thanh ((trung tam) OR (tran tuan)) nhung cong tan khang dau.
• Adding a wildcard symbol may retrieve word variants: ((ho lieu) or (so lieu)) tinh - thanh ((trung tam) or (tran tuan)) nhung cong tan khang dau*.