Perhaps you should try some spelling variations:
phan thong » phan thuong, phan hong, phan tong
khoan kham » khoa kham, khoanh khac, khoan cam
hoat phan » hoa phan, thuat phan, hoc phan
sach thue » sach thu, sach thieu, sach tham
thue phuc » thue thuc, thuyet phuc, thien phuc
kham tong » khau tong, pham trong, khac trong
sach dao » lanh dao
cac hoat » cao hoat, cac thuat, cac hop
phuc cac » phuc cam, phuc ca, phuc cham
vu sach » vu bach, su sach, vu khach
dao tue » dao tuc, dao tuyen, dao tuyet
tue cac » tu cac, tuc cac, te cac
tu sach » thu sach, su sach, te sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( vu sach dao tue cac hoat phan thong ) or ( tu sach thue phuc cac khoan kham tong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( vu sach dao tue cac hoat phan thong ) OR ( tu sach thue phuc cac khoan kham tong )).
• Adding a wildcard symbol may retrieve word variants: (( vu sach dao tue cac hoat phan thong ) or ( tu sach thue phuc cac khoan kham tong ))*.