Perhaps you should try some spelling variations:
khan thong » khap thong, khau thong, nhan thong
phan cong » thanh cong
hoat phan » hoa phan, thuat phan, hoc phan
sach dao » lanh dao
cac hoat » cao hoat, cac khoan, cac thuat
tham hoa » pham hoa, thanh hoa, pham khoa
hoa sach » khoa sach, hoc sach, hoi sach
nha khan » nha kham, nhap khau, nha khach
te sach » toc sach
dao tuc » dao duc
tuc cac » tu cac, tich cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( te sach dao tuc cac hoat phan cong ) or ( te sach tham hoa sach nha khan thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( te sach dao tuc cac hoat phan cong ) OR ( te sach tham hoa sach nha khan thong )).
• Adding a wildcard symbol may retrieve word variants: (( te sach dao tuc cac hoat phan cong ) or ( te sach tham hoa sach nha khan thong ))*.