Perhaps you should try some spelling variations:
khoan khau » khoanh khac, khoa kham, khoa phau
khau thong » khau thuong, khap thong, khau tong
hoach thu » hoach thay, doanh thu, hoach su
khoan phu » khoa phu, khoan phai, khoa thu
phu thong » pho thong, phap thong, phan thong
cao thuoc » cay thuoc, cua thuoc, nam thuoc
thuoc cac » thuoc cuc, thuoc cao, thuoc dac
sach cao » sach dao, sach cap, mach cao
te sach » toc sach
thu tu » thu tuc, tu tu, thu thuy

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 thu tu cac khoan phu thong ) or ( te sach cao thuoc cac khoan khau thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( thu hoach thu tu cac khoan phu thong ) OR ( te sach cao thuoc cac khoan khau thong )).
• Adding a wildcard symbol may retrieve word variants: (( thu hoach thu tu cac khoan phu thong ) or ( te sach cao thuoc cac khoan khau thong ))*.