Perhaps you should try some spelling variations:
phap trinh » phap tinh, lap trinh, phap sinh
thuoc phap » thuoc phai, thuc pham, hoc phap
lam thuoc » nam thuoc, am thuc, cay thuoc
trinh vat » trinh van, trinh luat, sinh vat
sach thu » sach thue, sach thieu, sach tham
hieu van » hieu va, thien van, lieu va
su sach » so sach, vu sach
lang xa » lang ha, dang xay, lang van
van lam » van nam
vat cua » mat cua, bat cua, dat cua
cua tre » cua te, cuu tre, cua triet

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach thu ((lang xa) or (nang x)) hoi. hieu van lam thuoc phap trinh vat cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach thu ((lang xa) OR (nang x)) hoi. hieu van lam thuoc phap trinh vat cua tre.
• Adding a wildcard symbol may retrieve word variants: su sach thu ((lang xa) or (nang x)) hoi. hieu van lam thuoc phap trinh vat cua tre*.