Perhaps you should try some spelling variations:
thanh doanh » hanh doanh, thanh toan, chinh doanh
hieu vien » hieu hien, hieu viec, thieu nien
doanh cua » doanh luan
vien cac » vien bach, vien dai, vien da
truc va » thuc va, thuc vat, trung va
nang xa » nang x, lang xa, nang ma
sach v » sach va, sach y, sach vay
tuc va » thuc va, tuc xa, duc va
sach 2 » sach y
cua tu » cua tuc, cua su, cua cu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach v) or (sach 2)) nang xa hoi. hieu vien cac ((tuc va) OR (truc va)) thanh doanh cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach v) OR (sach 2)) nang xa hoi. hieu vien cac ((tuc va) OR (truc va)) thanh doanh cua tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach v) or (sach 2)) nang xa hoi. hieu vien cac ((tuc va) OR (truc va)) thanh doanh cua tu".
• Adding a wildcard symbol may retrieve word variants: su ((sach v) or (sach 2)) nang xa hoi. hieu vien cac ((tuc va) OR (truc va)) thanh doanh cua tu*.