Perhaps you should try some spelling variations:
thanh lap » thanh san, thanh hai, thanh van
cham duc » pham duc, pham duy, phan duc
tang mai » tang ma, tang tai, lang mai
phan lap » phan dau
su sach » so sach, vu sach
cua tre » cua te, cuu tre, cua triet
sach ty » sach y, sach tu, sach thu
hieu vu » hieu va, hieu ve, hieu su
mai hoi » mai khoi, dai hoi, lai hoi
ty tang » tay tang, ty xang, ty hang

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 ty tang mai hoi. hieu vu ((cham duc) or (cham soc)) va ((thanh lap) OR (phan lap)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty tang mai hoi. hieu vu ((cham duc) OR (cham soc)) va ((thanh lap) OR (phan lap)) cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty tang mai hoi. hieu vu ((cham duc) or (cham soc)) va ((thanh lap) OR (phan lap)) cua tre*".