Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
thu sach » tu sach, thuat sach, thu hoach
ban benh » san benh, ba benh, ban banh
cham duc » pham duc, cham soc, pham duy
nang xa » nang x, lang xa, nang ma
hieu va » lieu va
benh di » benh dai, ben di, benh da
duc ban » duc tan, duc van, dua ban
di cua » dai cua, doi cua, de cua
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: ((thu sach) or (thuoc sach)) ky nang xa hoi. ((hieu va) OR (hieu qua)) cham duc ban benh di cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (thuoc sach)) ky nang xa hoi. ((hieu va) OR (hieu qua)) cham duc ban benh di cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sach) or (thuoc sach)) ky nang xa hoi. ((hieu va) OR (hieu qua)) cham duc ban benh di cua te*".