Perhaps you should try some spelling variations:
duong dang » dung dang, duong dan, duong dung
lieu tinh » trieu tinh, diep tinh, bien tinh
nang hang » nang sang, hang hang, cang thang
dang toan » dang tran, dan toan, dung toan
doi lieu » duoc lieu, doi chieu, du lieu
toan tap » toan ban
va dong » van dong, ha dong, lao dong
xa dong » ha dong, van dong, lao dong

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "doi lieu tinh - nang hang ((va dong) OR (xa dong)) duong dang toan tap~".
• Adding a wildcard symbol may retrieve word variants: doi lieu tinh - nang hang ((va dong) OR (xa dong)) duong dang toan tap*.