Perhaps you should try some spelling variations:
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
vu kham » vu khanh
sach ky » sach y, sach ty, sach kem
ve cham » va cham, ve chat, vu cham
nang ma » tang ma, sang ma, nang cao
ma hoi » mai hoi, xa hoi, ma hoa
sac ky » cac ky, sai ky
xuc va » duc va, tuc va, luc va
vi va » vi van, vai va, vu va
thiet » thieu

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 ma hoi. hieu ((ve cham) or (vu kham)) xuc va danh vi va thiet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sac ky)) nang ma hoi. hieu ((ve cham) OR (vu kham)) xuc va danh vi va thiet.
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) or (sac ky)) nang ma hoi. hieu ((ve cham) or (vu kham)) xuc va danh vi va thiet*.