Perhaps you should try some spelling variations:
pham thuong » phan thuong, pham hong
khau thong » khau thuong, khap thong, khau tong
khoa pham » khoa kham, khoa phau, khoa cham
cach khoa » bach khoa, cac khoa, cac khoan
khoa khau » khoa kham, khoa phau, khoa chau
sach dao » lanh dao
te sach » toc sach
tu cach » tu cac
su tue » su tu, vu tue
tue da » thue da, tu da, tue de
dao tu » dao tuc, dao tru, tao tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( thu hoach su tue da khoa pham thuong ) or ( te sach dao tu cach khoa khau thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( thu hoach su tue da khoa pham thuong ) OR ( te sach dao tu cach khoa khau thong )).
• Adding a wildcard symbol may retrieve word variants: (( thu hoach su tue da khoa pham thuong ) or ( te sach dao tu cach khoa khau thong ))*.