Perhaps you should try some spelling variations:
cua tre » cua te, cuu tre, cua triet
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
loc van » luoc van, hoc van, loc va
lo van » le van, vo van, so van
vi cua » vai cua, di cua
anh vi » hanh vi, anh va, anh ve
sac ky » sai ky
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sac ky) or (cac ky)) lang xa hoi. hieu ve cam ((loc van) OR (lo van)) anh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sac ky) OR (cac ky)) lang xa hoi. hieu ve cam ((loc van) OR (lo 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 cam ((loc van) OR (lo van)) anh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: tu ((sac ky) or (cac ky)) lang xa hoi. hieu ve cam ((loc van) OR (lo van)) anh vi cua tre*.