Perhaps you should try some spelling variations:
thuoc sach » nuoc sach, thuat sach, thuoc sinh
danh vien » doanh vien, danh viet, dan vien
hoc sach » hoc sinh, hoc cac, hoc anh
cac truc » cau truc, cac tru, cac trung
vien vai » vien dai, vien va, vien tai
lang xa » lang ha, dang xay, lang van
qua cac » cua cac
truc va » thuc va, thuc vat, trung va
va danh » va dinh, va dan, va hanh
y lang » o lang, _ lang, tay lang

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)) y lang xa hoi. hieu qua cac truc va danh vien vai tro~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thuoc sach) OR (hoc sach)) y lang xa hoi. hieu qua cac truc va danh vien vai tro.
• Adding a wildcard symbol may retrieve word variants: ((thuoc sach) or (hoc sach)) y lang xa hoi. hieu qua cac truc va danh vien vai tro*.