Perhaps you should try some spelling variations:
nang mai » nang ma, nang tai, lang mai
mai hoi » mai khoi, dai hoi, lai hoi
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
ve cac » va cac, vien cac
va cao » va cac, va co, va dao
xuc va » tuc va, luc va, xac va
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky nang mai hoi. hieu ((ve cac) or (va cao)) ((xuc va) or (duc va)) hanh vi cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang mai hoi. hieu ((ve cac) OR (va cao)) ((xuc va) OR (duc va)) hanh vi cua vat.
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang mai hoi. hieu ((ve cac) or (va cao)) ((xuc va) or (duc va)) hanh vi cua vat*.