Perhaps you should try some spelling variations:
nhung cong » dung cong, hang cong, nhung don
thong cong » trong cong, tong cong, thong thong
lieu tinh » trieu tinh, diep tinh, bien tinh
tung quan » tuong quan, trung quan, tong quan
dung quan » dung quang, dung luan, luong quan
tan toan » tan tran, tap toan, van toan
toan tap » toan ban
ho lieu » so lieu, co lieu, ho kieu

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