Perhaps you should try some spelling variations:
phau thong » phap thong, khau thong, phan thong
khoan phau » khoan phai, khoa chau, khoa phu
hanh khoa » hang khoa, anh khoa, hanh hoa
khoa phau » hoa phan, khoa kham, khoa than
hoach tri » hoach toi, hoach hoi, hoach thu
sach tri » sach tai, sach tren, sach truc
tue hanh » tu hanh, tuc hanh, tue anh
tu sach » thu sach, su sach, te sach
tri te » tri le, tri ve, toi te
te cac » tu cac, ve cac, te cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tu sach tri tue hanh khoa phau thong ) or ( thu hoach tri te cac khoan phau thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu sach tri tue hanh khoa phau thong ) OR ( thu hoach tri te cac khoan phau thong )).
• Adding a wildcard symbol may retrieve word variants: (( tu sach tri tue hanh khoa phau thong ) or ( thu hoach tri te cac khoan phau thong ))*.