Perhaps you should try some spelling variations:
nhung khuong » nhung phuong, nhung huong, nhung chong
khuong tinh » chuong trinh, phuong trinh, phuong binh
chieu tinh » lieu tinh, chau tinh, kieu tinh
tang luan » dung luan
toan dang » tran dang, toan mang, toan tang
thong tu » phong tuc, thong tin, thong ke

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu tinh) OR (trieu tinh)) - anh ((thong tu) or (tang luan)) nhung khuong tinh toan dang~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu tinh) OR (trieu tinh)) - anh ((thong tu) OR (tang luan)) nhung khuong tinh toan dang.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu tinh) OR (trieu tinh)) - anh ((thong tu) or (tang luan)) nhung khuong tinh toan dang".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu tinh) OR (trieu tinh)) - anh ((thong tu) or (tang luan)) nhung khuong tinh toan dang*.