Perhaps you should try some spelling variations:
chieu tinh » lieu tinh, chau tinh, kieu tinh
thanh dung » thanh duong, thanh tung, thanh hung
quang dung » quang trung, ung dung, cuong dung
trong dan » trong dang, trong san, trong tan
qua dung » su dung, qua song, qua cong
dan chan » dan gian, dan ca, van chat
chan tap » han tap, phan tap, chan ta

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu tinh) or (trieu tinh)) - thanh dung ((qua dung) OR (quang dung)) trong dan chan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu tinh) OR (trieu tinh)) - thanh dung ((qua dung) OR (quang dung)) trong dan chan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu tinh) or (trieu tinh)) - thanh dung ((qua dung) OR (quang dung)) trong dan chan tap".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu tinh) or (trieu tinh)) - thanh dung ((qua dung) OR (quang dung)) trong dan chan tap*.