Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
ban hanh » ban hang
sach ky » sach y, sach ty, sach kem
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
sac ky » cac ky, sai ky
ve cam » ve cham, ve cac, va cam
vi cua » vai cua, di 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: doc ((sach ky) OR (sac ky)) nang xa hoi. hieu ve cam xuc ((van thanh) or (ban hanh)) vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((sach ky) OR (sac ky)) nang xa hoi. hieu ve cam xuc ((van thanh) OR (ban hanh)) vi cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc ((sach ky) OR (sac ky)) nang xa hoi. hieu ve cam xuc ((van thanh) or (ban hanh)) vi cua te*".