Perhaps you should try some spelling variations:
chieu tinh » lieu tinh, chau tinh, kieu tinh
trong mach » trong cac, trong minh, trong anh
anh hoang » thanh hoang, minh hoang, tnhh hoang
mach toan » manh toan, hach toan, mach tuan
anh tang » anh bang, anh dang, anh nang
cua dung » cua dang, cua dong, qua dung
toan ban » van ban

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 ((chieu tinh) OR (trieu tinh)) - ((anh tang) OR (anh hoang)) cua dung trong mach toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu tinh) OR (trieu tinh)) - ((anh tang) or (anh hoang)) cua dung trong mach toan ban~".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu tinh) OR (trieu tinh)) - ((anh tang) or (anh hoang)) cua dung trong mach toan ban*.