Perhaps you should try some spelling variations:
cay thuoc » cua thuoc, nam thuoc, va thuoc
hanh vai » hanh vi, hanh va, hanh tai
so cach » co cach, loi cach, mot cach
va hanh » van hanh, va thanh, va danh
hieu ve » hieu va, hieu van
tu tang » tuc tang, tu trang, tu tong
tang ma » mang may, tang van
so sach » so sanh, bo sach, co sach
vai cua » dai cua, hai cua, lai cua
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((so cach) or (so sach)) tu tang ma hoi. hieu ve ((nam thu) or (cay thuoc)) va hanh vai cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so cach) OR (so sach)) tu tang ma hoi. hieu ve ((nam thu) OR (cay thuoc)) va hanh vai cua vat.
• Adding a wildcard symbol may retrieve word variants: ((so cach) or (so sach)) tu tang ma hoi. hieu ve ((nam thu) or (cay thuoc)) va hanh vai cua vat*.