Perhaps you should try some spelling variations:
thanh doi » thanh loi, thanh moi, thanh do
ban thanh » ban hanh, ban hang
cau loc » hau loc, cau hoc, cau luc
doi cua » dai cua, hoi cua
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
sach ky » sach y, sach ty, sach kem
loc ban » lo ban, hoc ban, coc ban
cua te » cua tu
sac ky » cac ky, sai ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach ky) OR (sac ky)) nang xa hoi. ((hieu ve) or (lieu va)) cau loc ban thanh doi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sac ky)) nang xa hoi. ((hieu ve) OR (lieu va)) cau loc ban thanh doi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) OR (sac ky)) nang xa hoi. ((hieu ve) or (lieu va)) cau loc ban thanh doi cua te".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) OR (sac ky)) nang xa hoi. ((hieu ve) or (lieu va)) cau loc ban thanh doi cua te*.