Perhaps you should try some spelling variations:
pham thuc » phap thuc, pham chuc, nham thuc
hoc sach » hoc sinh, hoc cac, hoc anh
dang tay » dang xay, dung tay, dan tay
sach ky » sac ky, sach y, sach ty
va hanh » van hanh, va thanh, va danh
va pham » van pham, va phat, va phap
tay hoi » tay ho, tao hoi, tay thai
ky dang » ky nang, ky danh
va dan » ca dan, va dao, va dau
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc sach ky dang tay hoi. lieu va pham thuc ((va hanh) or (va dan)) tai ((cua te) or (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sach ky dang tay hoi. lieu va pham thuc ((va hanh) OR (va dan)) tai ((cua te) OR (cua tu)).
• Adding a wildcard symbol may retrieve word variants: hoc sach ky dang tay hoi. lieu va pham thuc ((va hanh) or (va dan)) tai ((cua te) or (cua tu))*.