Perhaps you should try some spelling variations:
cham loc » cham soc, chon loc, hau loc
sach vu » sach tu, sach uu, sach xu
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
sach va » sach xa, sach ha, sach dao
cua tre » cua te, cuu tre, cua triet
cham o » cham soc
va dan » ca dan, va dao, va dau
dan di » danh di, dan da, dan de
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc ((sach vu) OR (sach va)) nang xa hoi. hieu ve ((cham loc) or (cham o)) va dan di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((sach vu) OR (sach va)) nang xa hoi. hieu ve ((cham loc) OR (cham o)) va dan di cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((sach vu) OR (sach va)) nang xa hoi. hieu ve ((cham loc) or (cham o)) va dan di cua tre".
• Adding a wildcard symbol may retrieve word variants: toc ((sach vu) OR (sach va)) nang xa hoi. hieu ve ((cham loc) or (cham o)) va dan di cua tre*.