Perhaps you should try some spelling variations:
pham thuc » phap thuc, pham chuc, nham thuc
tiep cua » tiep can, dieu cua, tap cua
thu sach » thuat sach, thuoc sach, thu hoach
van phan » van phong, van thanh, luan phan
thuc van » thuc vat, thuc dan, thuc va
lap cua » lai cua, tap cua, lam cua
tu sach » su sach, te sach, tu cach
hieu vu » hieu va, hieu ve, hieu su
nang ho » nang hoc, nang co, tang ho
vu pham » su pham, vi pham, vu kham
ho hoi » hoc hoi, hoa hoi, hoi hoi
y nang » ky nang, ly nang, v nang

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) or (thu sach)) y nang ho hoi. hieu vu pham thuc van phan ((lap cua) or (tiep cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) y nang ho hoi. hieu vu pham thuc van phan ((lap cua) OR (tiep cua)) triet.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu sach)) y nang ho hoi. hieu vu pham thuc van phan ((lap cua) or (tiep cua)) triet*.