Perhaps you should try some spelling variations:
truong ham » truong cao, truong dao, truong va
nhung cong » dung cong, thong cong, hang cong
hoc chieu » ho chieu, hoc hien, hoc dieu
hoc thieu » toc thieu, hoc hien
cong dan » cong san, cong tan, huong dan
dan khan » dan khanh, dan chan, dan than
khan ap » khan cap, han ap, khan dam

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) OR (hoc thieu)) xanh - thanh ((truong ham) or (truong dai)) nhung cong dan khan ap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chieu) OR (hoc thieu)) xanh - thanh ((truong ham) OR (truong dai)) nhung cong dan khan ap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc chieu) OR (hoc thieu)) xanh - thanh ((truong ham) or (truong dai)) nhung cong dan khan ap".
• Adding a wildcard symbol may retrieve word variants: ((hoc chieu) OR (hoc thieu)) xanh - thanh ((truong ham) or (truong dai)) nhung cong dan khan ap*.