Perhaps you should try some spelling variations:
doanh vien » doanh tien, doanh chien, thanh vien
thu sach » tu sach, thuat sach, thuoc sach
cay thuc » cay thuoc, can thuc, day thuc
va doanh » van doanh, vay doanh, va danh
vien cac » vien bach, vien dai, vien da
ky lang » ky nang, tay lang
ky tang » ky nang, kho tang, ky trong
ky dang » ky nang, ky danh
qua cay » cua cay, qua cac, qua ca
thuc va » thuc vat, thuc dan, thuc day
ha hoi » hoa hoi, ha noi, xa hoi

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 lang) OR (ky tang))) or (ky dang)) ha hoi. hieu qua cay thuc va doanh vien cac tro~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((((ky lang) OR (ky tang))) OR (ky dang)) ha hoi. hieu qua cay thuc va doanh vien cac tro*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ((((ky lang) OR (ky tang))) or (ky dang)) ha hoi. hieu qua cay thuc va doanh vien cac tro*".