Perhaps you should try some spelling variations:
sang mai » sang ma, sang tai, lang mai
ky sang » ky nang, ky dang, ky tang
mai hoi » mai khoi, dai hoi, lai hoi
hieu ve » hieu va, hieu van
cuu tre » cua tre, cau tren, cau treo
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
ve cam » ve cham, ve cac, va cam
xuc va » luc va, xac va
tuc va » thuc va, truc va, tuc xa
vi cuu » vi luu, vinh cuu

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 sang mai hoi. hieu ve cam ((((xuc va) or (duc va))) or (tuc va)) hanh vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky sang mai hoi. hieu ve cam ((((xuc va) OR (duc va))) OR (tuc va)) hanh vi cuu tre.
• Adding a wildcard symbol may retrieve word variants: tu sac ky sang mai hoi. hieu ve cam ((((xuc va) or (duc va))) or (tuc va)) hanh vi cuu tre*.