Perhaps you should try some spelling variations:
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
cua tre » cua te, cuu tre, cua triet
sac ky » sai ky
anh vi » hanh vi, anh va, anh ve
vi cua » vai cua, di cua
o van » so van, do van, ho van

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sac ky) OR (cac ky)) lang xa hoi. hieu ve cham ((o van) OR (vo van)) anh vi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sac ky) or (cac ky)) lang xa hoi. hieu ve cham ((o van) OR (vo van)) anh vi cua tre~".
• Adding a wildcard symbol may retrieve word variants: tu ((sac ky) or (cac ky)) lang xa hoi. hieu ve cham ((o van) OR (vo van)) anh vi cua tre*.