Perhaps you should try some spelling variations:
hanh doi » thanh doi, hanh noi, hang doi
doi cua » dai cua, hoi cua
sach ty » sach y, sach tu, sach thu
va chat » van chat, va phat, cao chat
hieu va » lieu va, hieu qua
nang xa » nang x, lang xa, nang ma
cach tu » cach thuc
tuc va » thuc va, truc va, duc va
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) or (cach tu)) nang xa hoi. hieu va chat ((tuc va) or (tuc xa)) hanh doi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ty) OR (cach tu)) nang xa hoi. hieu va chat ((tuc va) OR (tuc xa)) hanh doi cua te.
• Adding a wildcard symbol may retrieve word variants: te ((sach ty) or (cach tu)) nang xa hoi. hieu va chat ((tuc va) or (tuc xa)) hanh doi cua te*.