Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
van thanh » van tuan
cach thuc » anh thuc, cac thu
te cach » ve cach, te sach, tu cach
hieu ve » hieu va, hieu van
cam duc » cam xuc, cao duc, pham duc
song xa » song cua
sang xa » lang xa, sang ma, mang xa
ve cam » ve cham, ve cac, va cam
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: te cach thuc ((sang xa) or (song xa)) hoi. hieu ve cam duc ((van thanh) OR (ban thanh)) di cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te cach thuc ((sang xa) OR (song xa)) hoi. hieu ve cam duc ((van thanh) OR (ban thanh)) di cua vat*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te cach thuc ((sang xa) or (song xa)) hoi. hieu ve cam duc ((van thanh) OR (ban thanh)) di cua vat*".