Perhaps you should try some spelling variations:
doanh vien » doanh tien, doanh chien, thanh vien
thuoc sach » hoc sach, nuoc sach, thuat sach
vien cac » vien bach, vien dai, vien da
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
truc va » thuc va, trung va
qua ca » qua cac, qua cua, qua cai

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 nang xa hoi. hieu qua ca ((truc va) or (thuc vat)) doanh vien cac tro~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach ky nang xa hoi. hieu qua ca ((truc va) OR (thuc vat)) doanh vien cac tro.
• Adding a wildcard symbol may retrieve word variants: thuoc sach ky nang xa hoi. hieu qua ca ((truc va) or (thuc vat)) doanh vien cac tro*.