Perhaps you should try some spelling variations:
nam thuoc » nam thuc, nam thu, nha thuoc
chat tre » chay tren, chat tai, cho tre
dang mai » dang hai, dang mau, dang bai
lam chat » luan chat, cao chat, ly chat
nam duoc » da duoc, dat duoc, nam moc
dinh lam » dinh van, tinh lao
ky dang » ky nang, ky danh
mai hoi » mai khoi, dai hoi, lai hoi
hieu ve » hieu va, hieu van
va dinh » van dinh, va kinh, va tinh
te sai » te tai, te bai, te lai
sai ky » sac ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sai ky dang mai hoi. hieu ve ((((nam duoc) or (nam thuoc))) or (cam xuc)) va dinh lam chat tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sai ky dang mai hoi. hieu ve ((((nam duoc) OR (nam thuoc))) OR (cam xuc)) va dinh lam chat tre.
• Adding a wildcard symbol may retrieve word variants: te sai ky dang mai hoi. hieu ve ((((nam duoc) or (nam thuoc))) or (cam xuc)) va dinh lam chat tre*.