Perhaps you should try some spelling variations:
pham thuc » phap thuc, pham chuc, nham thuc
hang dien » quang dien, dang dieu, nhan dien
thuc day » thuc dan, thuc vat
thu sach » tu sach, thuat sach, thuoc sach
sach ty » sach y, sach tu, sach thu
hang di » hang doi, hang vi, hang dich
cao hoi » co hoi, cao hoc, tao hoi
ty nang » ky nang, ty xang, ty hang
hieu v » hieu va, hieu ve, hieu 2
v pham » vi pham, d pham
cua te » cua 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 sach ty nang ((cao hoi) or (cau hoi)). hieu v pham thuc day ((hang di) or (hang dien)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ty nang ((cao hoi) OR (cau hoi)). hieu v pham thuc day ((hang di) OR (hang dien)) cua te.
• Adding a wildcard symbol may retrieve word variants: thu sach ty nang ((cao hoi) or (cau hoi)). hieu v pham thuc day ((hang di) or (hang dien)) cua te*.