Perhaps you should try some spelling variations:
phan thuc » nhan thuc, phap thuc, pham thuc
gian cua » gian xu, ban cua
thuc can » thuc chan, thuc dan, thuc van
van phan » van phong, van thanh, luan phan
hieu van » hieu va, thien van, lieu va
can dan » canh dan, cac dan, can ban
lang xa » lang ha, dang xay, lang van
sach ky » sac ky, sach y, sach kem
dang ha » dong ha, dung ha, lang ha
sach ty » sach y, sach tu, sach thu
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: su ((sach ky) or (sach ty)) ((dang ha) or (lang xa)) hoi. hieu van phan thuc can dan gian cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ky) OR (sach ty)) ((dang ha) OR (lang xa)) hoi. hieu van phan thuc can dan gian cua tu.
• Adding a wildcard symbol may retrieve word variants: su ((sach ky) or (sach ty)) ((dang ha) or (lang xa)) hoi. hieu van phan thuc can dan gian cua tu*.