Perhaps you should try some spelling variations:
dinh thi » dinh tri
cac viet » cach viet, bac viet, ca viet
tang ky » dang ky, trong ky, tang khu
sang ky » sang kyo, dang ky, bang ky
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
va dinh » van dinh, va kinh, va tinh
thi cac » thi cuc, tai cac, thi tac
san ky » van ky, dan ky, ban ky
ve cam » ve cham, ve cac, va cam
xuc va » duc va, tuc va, luc va

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 ky) or (((sang ky) OR (tang ky)))) nang xa hoi. hieu ve cam xuc va dinh thi cac viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((san ky) OR (((sang ky) OR (tang ky)))) nang xa hoi. hieu ve cam xuc va dinh thi cac viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((san ky) or (((sang ky) OR (tang ky)))) nang xa hoi. hieu ve cam xuc va dinh thi cac viet".
• Adding a wildcard symbol may retrieve word variants: tu ((san ky) or (((sang ky) OR (tang ky)))) nang xa hoi. hieu ve cam xuc va dinh thi cac viet*.