Perhaps you should try some spelling variations:
thuoc sac » thuoc sach, thuoc dac, thuoc sai
tinh lai » tinh lao, tinh hai, minh lai
dang vat » dang van, dong vat, dang nhat
lai cuu » lai cua, lai chau, lai cuoc
va tinh » may tinh
vu cham » va cham, vu kham, tu cham
cuu tre » cua tre, cau tren, cau treo
dang ma » dang mau, dang mam, dang mat
sac ky » cac ky, sai ky
xuc va » duc va, tuc va, luc va
va cam » va cham, va cac, va cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc sac ky ((dang ma) or (dang vat)) hoi. hieu ((va cam) or (vu cham)) xuc va tinh lai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sac ky ((dang ma) OR (dang vat)) hoi. hieu ((va cam) OR (vu cham)) xuc va tinh lai cuu tre.
• Adding a wildcard symbol may retrieve word variants: thuoc sac ky ((dang ma) or (dang vat)) hoi. hieu ((va cam) or (vu cham)) xuc va tinh lai cuu tre*.