Perhaps you should try some spelling variations:
sach kem » hanh kem
va thanh » gia thanh, ban thanh, va tinh
hieu va » lieu va, hieu qua
cac luc » cau luc, coc luc, cac nuoc
sac ky » cac ky, sai ky
luc va » duc va, tuc va, loc va
ve cua » le cua, de cua, ve cum
te cua » tue cua, le cua, de cua

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 kem) or (sac ky)) nang x ho. hieu va cac luc va thanh ((ve cua) or (te cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach kem) OR (sac ky)) nang x ho. hieu va cac luc va thanh ((ve cua) OR (te cua)) triet.
• Adding a wildcard symbol may retrieve word variants: tu ((sach kem) or (sac ky)) nang x ho. hieu va cac luc va thanh ((ve cua) or (te cua)) triet*.