Perhaps you should try some spelling variations:
doanh vien » doanh tien, doanh chien, thanh vien
thu sach » tu sach, thuat sach, thuoc 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 vat, trung va
thuc va » thuc vat, thuc dan, thuc day
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: thu sach ky nang xa hoi. hieu qua ca ((truc va) OR (thuc va)) doanh vien cac tro~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ky nang xa hoi. hieu qua ca ((truc va) OR (thuc va)) doanh vien cac tro".
• Adding a wildcard symbol may retrieve word variants: thu sach ky nang xa hoi. hieu qua ca ((truc va) OR (thuc va)) doanh vien cac tro*.