Perhaps you should try some spelling variations:
diem cau » dieu can
va hanh » van hanh, va thanh, va danh
cam duc » cam xuc, cao duc, pham duc
sach ty » sach y, sach thu, xach tay
hieu va » lieu va, hieu qua
nang xa » nang x, lang xa, nang ma
sach tu » sach thu, cach tu, sach uu
di cau » da cau
va cam » va cham, va cac, va cao

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 (sach tu)) nang xa hoi. hieu va cam duc va hanh ((di cau) OR (diem cau)) treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ty) OR (sach tu)) nang xa hoi. hieu va cam duc va hanh ((di cau) OR (diem cau)) treo*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ty) or (sach tu)) nang xa hoi. hieu va cam duc va hanh ((di cau) OR (diem cau)) treo*".