Perhaps you should try some spelling variations:
thuong thuat » thuong thuyet, thuong thuc, trong thuat
trung thuat » trong thuat, trung tuan, trung thuc
khoi thuat » ki thuat, hoc thuat
thuat tach » thuat sach, thuat mach, thuat tac
thong cong » trong cong, tong cong, thong thong
cong dang » cong dong, cong dan, cong dung
dang van » hoang van, hang va

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

• Performing a fuzzy search may retrieve terms with similar spellings: khoi thuat tach - thanh ((trung thuat) or (thuong thuat)) thong cong dang van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: khoi thuat tach - thanh ((trung thuat) OR (thuong thuat)) thong cong dang van ban.
• Adding a wildcard symbol may retrieve word variants: khoi thuat tach - thanh ((trung thuat) or (thuong thuat)) thong cong dang van ban*.