Perhaps you should try some spelling variations:
te sach » toc sach
hang di » hang doi, hang vi, hang dien
va hang » van hang, va nang, va lang
cau luc » cau phuc
sach ty » sach y, sach tu, sach thu
nang xa » nang x, lang xa, mang xa
nang ma » tang ma, sang ma, nang cao
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 ty ((nang xa) or (nang ma)) hoi. hieu qua ((cau luc) OR (cau truc)) va hang di cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty ((nang xa) OR (nang ma)) hoi. hieu qua ((cau luc) OR (cau truc)) va hang di cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty ((nang xa) or (nang ma)) hoi. hieu qua ((cau luc) OR (cau truc)) va hang di cua te*".