Perhaps you should try some spelling variations:
thuoc sach » nuoc sach, thuat sach, thuoc sinh
hoc sach » hoc sinh, hoc cac, hoc anh
nang xa » nang x, lang xa, nang ma
cam duc » cam xuc, cao duc, pham duc
va phan » van phan, va phat, hoa phan
va phap » va phat, ban phap
tai cua » thai cua, tai cuc, tri cua
va cam » va cham, va cac, va cao
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) or (hoc sach)) ky nang xa hoi. lieu va cam duc ((va phan) OR (va phap)) tai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thuoc sach) OR (hoc sach)) ky nang xa hoi. lieu va cam duc ((va phan) OR (va phap)) tai cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thuoc sach) or (hoc sach)) ky nang xa hoi. lieu va cam duc ((va phan) OR (va phap)) tai cua te*".