Perhaps you should try some spelling variations:
thanh tung » thanh cong
nhung cong » thong cong, hang cong, nhung don
thanh khan » thanh phan, thanh nhan, thanh thanh
tung tuan » trung tuan, hung tuan, quang tuan
dung cong » dung trong
ho lieu » co lieu, ho kieu, ho chieu
so lieu » so dieu
khan ap » khan cap, han ap, khan dam

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 tung tuan ((nhung cong) OR (dung cong)) thanh khan ap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho lieu) OR (so lieu)) tinh - thanh tung tuan ((nhung cong) OR (dung cong)) thanh khan 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) OR (dung cong)) thanh khan ap".
• Adding a wildcard symbol may retrieve word variants: ((ho lieu) or (so lieu)) tinh - thanh tung tuan ((nhung cong) OR (dung cong)) thanh khan ap*.