Perhaps you should try some spelling variations:
thanh tung » thanh cong
tuan nhung » quan nhung, tuan hung, thuat nhung
nhung cong » dung cong, thong cong, hang cong
toan khoan » toan khoa, toan phan, toan hoat
tung tuan » trung tuan, hung tuan, quang tuan
tan khan » tan khang, tan nhan, tran khanh
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.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho lieu) OR (so lieu)) tinh - thanh tung tuan nhung cong ((tan khan) OR (toan khoan)) ap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho lieu) or (so lieu)) tinh - thanh tung tuan nhung cong ((tan khan) OR (toan khoan)) ap~".
• Adding a wildcard symbol may retrieve word variants: ((ho lieu) or (so lieu)) tinh - thanh tung tuan nhung cong ((tan khan) OR (toan khoan)) ap*.