Perhaps you should try some spelling variations:
trien hoat » tien hoa
cham trien » phat trien, pham tien, cam tien
quang kieu » quang dieu, quang dien, quang lien
dung gian » duong gian, dung giao, dung giam
gian cham » gian cua, gian cac, gian ha
dat quang » dau quang, chat quang, dang quang
kieu soat » kiem soat, hieu suat, hieu hoat
danh dat » danh bat, dinh dat, dan dat

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( (tin OR tinh) dung gian cham trien hoat ) or ( minh danh dat quang kieu soat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( (tin OR tinh) dung gian cham trien hoat ) OR ( minh danh dat quang kieu soat )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( (tin OR tinh) dung gian cham trien hoat ) or ( minh danh dat quang kieu soat ))".
• Adding a wildcard symbol may retrieve word variants: (( (tin OR tinh) dung gian cham trien hoat ) or ( minh danh dat quang kieu soat ))*.