Perhaps you should try some spelling variations:
thanh lap » thanh san, phan lap, thanh hai
lang van » dang van, tang van, hoang van
va thanh » gia thanh, ban thanh, va tinh
lap cua » lai cua, tap cua, lam cua
cam duc » cam xuc, cao duc, pham duc
hieu va » lieu va, hieu qua
sach tu » sach thu, sach ty, sach uu
nang xa » nang x, lang xa, nang ma
cach tu » cach thuc
cua tre » cua te, cuu tre, cua triet
va cam » va cham, va cac, va cao

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 tu) OR (cach tu)) ((nang xa) or (lang van)) hoi. hieu va cam duc va thanh lap cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach tu) OR (cach tu)) ((nang xa) OR (lang van)) hoi. hieu va cam duc va thanh lap cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach tu) OR (cach tu)) ((nang xa) or (lang van)) hoi. hieu va cam duc va thanh lap cua tre".
• Adding a wildcard symbol may retrieve word variants: su ((sach tu) OR (cach tu)) ((nang xa) or (lang van)) hoi. hieu va cam duc va thanh lap cua tre*.