Perhaps you should try some spelling variations:
phau thong » phap thong, khau thong, phan thong
khoa phau » hoa phan, khoa kham, khoa than
khoan pho » khoan nhoi, khoan phai, khoan hoi
pho thong » he thong
lenh dao » lanh dao, benh dai, minh dao
dao thuc » dan thuc, dao tuc, do thuc
thuc cac » thuc cach, tuc cac, thac cac
cac khoa » cac khoi, dac khoa, cao khoa
sach qua » sach quan, bach qua, sach cua
qua phuc » xuan phuc, qua huy, huu phuc
phuc cac » phuc cam, phuc ca, phuc cham
vu sach » vu bach, su sach, vu khach

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tu lenh dao thuc cac khoa phau thong ) or ( vu sach qua phuc cac khoan pho thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu lenh dao thuc cac khoa phau thong ) OR ( vu sach qua phuc cac khoan pho thong )).
• Adding a wildcard symbol may retrieve word variants: (( tu lenh dao thuc cac khoa phau thong ) or ( vu sach qua phuc cac khoan pho thong ))*.