Perhaps you should try some spelling variations:
thanh lap » thanh san, phan lap, thanh hai
va thanh » gia thanh, ban thanh, va tinh
cac nuoc » cap nuoc, hoc nuoc, dat nuoc
tu sach » thu sach, su sach, te sach
sach ly » sach y, sach lo, sach ty
cua tre » cua te, cua triet, dua tren
cuu tre » cau tren, cau treo
hieu ve » hieu va, hieu van
ly nang » ky nang, ly hang, ly vang
ma hoi » mai hoi, ma hoa, me hoi
ve cac » va cac, vien 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 ly nang ((ma hoi) or (xa hoi)). hieu ve cac nuoc va thanh lap ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ly nang ((ma hoi) OR (xa hoi)). hieu ve cac nuoc va thanh lap ((cua tre) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: tu sach ly nang ((ma hoi) or (xa hoi)). hieu ve cac nuoc va thanh lap ((cua tre) or (cuu tre))*.