Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
thanh phan » thanh pho, thanh san, thanh toan
ky lang » ky dang, ky tang, tay lang
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
soc gia » toc gia, hoc gia, so gia
cua tre » cuu tre, cua triet, dua tren
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: thuoc sach ((ky lang) OR (ky nang)) xa hoi. hieu ve cham soc gia thanh phan ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach ((ky lang) OR (ky nang)) xa hoi. hieu ve cham soc gia thanh phan ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sach ((ky lang) OR (ky nang)) xa hoi. hieu ve cham soc gia thanh phan ((cua tre) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: thuoc sach ((ky lang) OR (ky nang)) xa hoi. hieu ve cham soc gia thanh phan ((cua tre) or (cua te))*.