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
hieu van » hieu va, thien van, lieu va
trinh va » trinh van, trinh vat, trinh ve
tu sach » thu sach, su sach, te sach
cua tre » cua te, cuu tre, cua triet
van lam » van nam
sach ty » sach y, sach tu, sach thu
nang xa » lang xa, nang ma, mang xa
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: tu sach ty ((nang xa) or (nang x)) hoi. hieu van lam thuoc phap trinh va ((cua tre) or (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty ((nang xa) OR (nang x)) hoi. hieu van lam thuoc phap trinh va ((cua tre) OR (cua tu)).
• Adding a wildcard symbol may retrieve word variants: tu sach ty ((nang xa) or (nang x)) hoi. hieu van lam thuoc phap trinh va ((cua tre) or (cua tu))*.