Perhaps you should try some spelling variations:
luoc van » luoc can, luoc va, luot van
luc van » luu van, duc van, luc va
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
sach tu » sach thu, cach tu, sach uu
nano xa » nano va, nano bac, nano cau
sach ty » sach y, sach thu, xach tay
cuu tre » cua tre, cau tren, cau treo
vi cuu » vi luu, vinh cuu

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 tu) or (sach ty)) nano xa hoi. hieu ve cham ((luc van) or (luoc van)) hanh vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach tu) OR (sach ty)) nano xa hoi. hieu ve cham ((luc van) OR (luoc van)) hanh vi cuu tre.
• Adding a wildcard symbol may retrieve word variants: tu ((sach tu) or (sach ty)) nano xa hoi. hieu ve cham ((luc van) or (luoc van)) hanh vi cuu tre*.