Perhaps you should try some spelling variations:
te sach » toc sach
lang di » lang dai, hang di, lang du
sach tu » sach thu, cach tu, sach ty
qua cam » qua cham, qua cac, qua ca
nang xa » nang x, lang xa, nang ma
lang ha » long ha
luc va » duc va, tuc va
loc va » hoc va
di cua » dai cua, doi cua, de cua
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach tu ((nang xa) or (lang ha)) hoi. hieu qua cam ((luc va) OR (loc va)) lang di cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach tu ((nang xa) OR (lang ha)) hoi. hieu qua cam ((luc va) OR (loc va)) lang di cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach tu ((nang xa) or (lang ha)) hoi. hieu qua cam ((luc va) OR (loc va)) lang di cua te*".