Perhaps you should try some spelling variations:
phap trinh » phap tinh, lap trinh, phap sinh
trinh dat » trinh da, trinh dan, trinh dao
hoc phap » hoc phan, hoc phat, hoc pho
hieu van » hieu va, thien van, lieu va
dat cua » dai cua, day cua, mat cua
lam hoc » am hoc, lam hoa, tam hoc
van lam » van nam
cua tre » cua te, cuu tre, cua triet
sach ty » sach y, sach thu, xach tay
lang ha » long ha
sach tu » sach thu, cach tu, sach uu

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) OR (sach tu)) ((lang ha) or (nang x)) hoi. hieu van lam hoc phap trinh dat cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((sach ty) OR (sach tu)) ((lang ha) OR (nang x)) hoi. hieu van lam hoc phap trinh dat cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu ((sach ty) OR (sach tu)) ((lang ha) or (nang x)) hoi. hieu van lam hoc phap trinh dat cua tre".
• Adding a wildcard symbol may retrieve word variants: thu ((sach ty) OR (sach tu)) ((lang ha) or (nang x)) hoi. hieu van lam hoc phap trinh dat cua tre*.