Perhaps you should try some spelling variations:
khau thong » khau thuong, khap thong, khau tong
hoach tac » hoach toan, hoach thay, hoach xay
tac quyen » tac tuyen, tam quyen, cac quyen
quyen cac » quyen cach, quyen cap, truyen cac
khoan phu » khoa phu, khoan phai, khoa thu
phu thong » pho thong, phap thong, phan thong
thuc cach » thuoc sach, truoc cach, thuc hanh
cach khoa » bach khoa, cac khoa, anh khoa
khoa khau » khoa kham, khoa phau, khoa chau
sach dao » lanh dao
dao thuc » dan thuc, dao tuc, do thuc
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: (( thu hoach tac quyen cac khoan phu thong ) or ( tu sach dao thuc cach khoa khau thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( thu hoach tac quyen cac khoan phu thong ) OR ( tu sach dao thuc cach khoa khau thong )).
• Adding a wildcard symbol may retrieve word variants: (( thu hoach tac quyen cac khoan phu thong ) or ( tu sach dao thuc cach khoa khau thong ))*.