Perhaps you should try some spelling variations:
chieu tro » chi tro, chieu cao, chieu gio
luan hieu » luan tieu, luan dieu, luan thiet
gian van » giang van, gian lan, gian lang
hieu tra » dieu tra, hiep tran, hien trau
hieu cua » hieu qua, bieu cua, hieu ca
dan luan » doanh luan, dung luan, tang luan
khoe dan » khoe ban, khoa dang, khoe dinh
dieu cua » dieu tra
cua dieu » va dieu
tieu thu » trieu thi, tieu su
gian dan » gian lang
tien thu » kien thuc, trien thi, bien thuc
cap cua » cap cuu, ca cua, cau cua
tap cua » tap quan, tiep cua
cho cay » cho cac, cho vay, cho can
cay cua » ca cua, day cua, cay ca
cua tap » cua tam, cua phap

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( pho ((gian van) or (gian dan)) ((tien thu) or (tieu thu)) ) or ((((( pho cap cua tap cua ) or ( cho cay cua dieu cua ))) or ((( khoe dan luan hieu cua ) or ( khoe dan luan ((hieu tra) OR (chieu tro)) ))))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( pho ((gian van) OR (gian dan)) ((tien thu) OR (tieu thu)) ) OR ((((( pho cap cua tap cua ) OR ( cho cay cua dieu cua ))) OR ((( khoe dan luan hieu cua ) OR ( khoe dan luan ((hieu tra) OR (chieu tro)) ))))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( pho ((gian van) or (gian dan)) ((tien thu) or (tieu thu)) ) or ((((( pho cap cua tap cua ) or ( cho cay cua dieu cua ))) or ((( khoe dan luan hieu cua ) or ( khoe dan luan ((hieu tra) OR (chieu tro)) ))))))*".