Perhaps you should try some spelling variations:
thuoc thuan » phuoc thuan, thuoc tan, thuc huan
thuan anh » tuan anh, thuan thanh, thuat lanh
nam thuoc » nam thuc, nam thu, nha thuoc
tu cach » tu cac
vu sach » vu bach, su sach, vu khach
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
hieu va » lieu va
va cua » va chua, via cua, ca cua
anh va » hanh va
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu cach) or (vu sach)) ky dang xa hoi. ((hieu va) OR (hieu qua)) nam thuoc thuan anh va cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (vu sach)) ky dang xa hoi. ((hieu va) OR (hieu qua)) nam thuoc thuan anh va cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu cach) or (vu sach)) ky dang xa hoi. ((hieu va) OR (hieu qua)) nam thuoc thuan anh va cua te".
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (vu sach)) ky dang xa hoi. ((hieu va) OR (hieu qua)) nam thuoc thuan anh va cua te*.