Perhaps you should try some spelling variations:
dinh tri » chinh tri
luu tre » luu tru, cuu tre, luy tre
tri luu » thi luu, tri lieu
va dinh » van dinh, va kinh, va tinh
vu cham » va cham, vu kham, tu cham
ve cham » va cham, ve chat, ve chim
dang xa » dang xay, lang xa, dang ha
ky dang » ky nang, ky danh
phu san » phi san, thuy san
tu san » thu san, tu ban, tu can

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu san) or (phu san)) ky dang xa hoi. hieu ((ve cham) or (vu cham)) hoc va dinh tri luu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu san) OR (phu san)) ky dang xa hoi. hieu ((ve cham) OR (vu cham)) hoc va dinh tri luu tre.
• Adding a wildcard symbol may retrieve word variants: ((tu san) or (phu san)) ky dang xa hoi. hieu ((ve cham) or (vu cham)) hoc va dinh tri luu tre*.