Perhaps you should try some spelling variations:
cau luoc » cau luc, muu luoc, hau loc
luoc van » luoc can, luoc va, luc van
van hanh » van thanh, ban hanh, van anh
hanh lai » hanh lam, hanh tai, thanh lap
chau tre » chay tren, chau tho, cho tre
sach ty » sach y, sach tu, sach thu
hieu ve » hieu va, hieu van
sac ky » cac ky, sai ky
ve cau » ke cau, va cau, ve cac

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) or (sac ky)) nang x ho. hieu ve cau luoc van hanh lai chau tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ty) OR (sac ky)) nang x ho. hieu ve cau luoc van hanh lai chau tre.
• Adding a wildcard symbol may retrieve word variants: tu ((sach ty) or (sac ky)) nang x ho. hieu ve cau luoc van hanh lai chau tre*.