Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
hoc thieu » toc thieu, hoc hien
tranh cua » doanh cua, manh cua
cua hang » cua dang, cua nhung, cua cong
nong dan » cong dan, nguong dan, huong dan
nong san » cong san, dong san, trong san
chan ban » can ban, chat ban, chan nan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu tinh - canh tranh cua hang ((nong dan) or (nong san)) chan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - canh tranh cua hang ((nong dan) OR (nong san)) chan ban.
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - canh tranh cua hang ((nong dan) or (nong san)) chan ban*.