Perhaps you should try some spelling variations:
thuc dan » thuc hanh, hoc dan, thuc vat
dan hanh » dang hanh, dan khanh, dan thanh
nang ma » tang ma, sang ma, nang cao
vu sac » vu sach, vu san, va sac
sac ky » cac ky, sai ky
ma hoi » mai hoi, xa hoi, ma hoa
ve nam » va nam, te nam, viet nam
le nam » ly nam, le na, te nam
he nam » ha nam, nghe nam
vi cua » vai cua, di cua
cua tu » cua tuc, cua su, cua cu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: vu sac ky nang ma hoi. hieu ((ve nam) or (((le nam) or (he nam)))) thuc dan hanh vi cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sac ky nang ma hoi. hieu ((ve nam) OR (((le nam) OR (he nam)))) thuc dan hanh vi cua tu.
• Adding a wildcard symbol may retrieve word variants: vu sac ky nang ma hoi. hieu ((ve nam) or (((le nam) or (he nam)))) thuc dan hanh vi cua tu*.