Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
van chat » cao chat
chat xuc » chat huu, cam xuc, chao xu
van hanh » van thanh, ban hanh, van anh
sach ky » sach y, sach ty, sach kem
nang ma » tang ma, sang ma, nang cao
xuc van » duc van, luc van, xuc ban
hanh va » hang va, hanh vi
sac ky » cac ky, sai ky
ma hoi » mai hoi, xa hoi, ma hoa
va va » va van, va vua, va vai
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 van chat xuc van hanh va 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 van chat xuc van hanh va va thiet.
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) or (sac ky)) nang ma hoi. hieu van chat xuc van hanh va va thiet*.