Perhaps you should try some spelling variations:
thuc dang » thuoc dang, thuc dan, thu dang
thuc dung » thuoc dung, thuy dung, tuc dung
cua triet » cua viet, su triet, va triet
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
ve nham » ve nha, ve cham
tinh vi » trinh vi, tinh voi, tinh va
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
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: te sac ky lang xa hoi. hieu ve nham ((thuc dang) OR (thuc dung)) tinh vi cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky lang xa hoi. hieu ve nham ((thuc dang) OR (thuc dung)) tinh vi cua triet".
• Adding a wildcard symbol may retrieve word variants: te sac ky lang xa hoi. hieu ve nham ((thuc dang) OR (thuc dung)) tinh vi cua triet*.