Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
thu sach » thuat sach, thuoc sach, thu hoach
va thanh » gia thanh, ban thanh, va tinh
hang cao » hoang cao, nang cao, hang ca
thi cham » thi hai, toc cham, thi ha
vai cua » dai cua, hai cua, lai cua
tu cham » toc cham
cao hoi » cau hoi, co hoi, cao hoc
ly hang » ly quang
tu sach » su sach, te sach, tu cach
cua tre » cua te, cuu tre, cua triet
lo va » lo van, lao va, ly va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((thu sach) or (tu sach)) ly hang cao hoi. hieu ((tu cham) OR (thi cham)) lo va thanh vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (tu sach)) ly hang cao hoi. hieu ((tu cham) OR (thi cham)) lo va thanh vai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sach) or (tu sach)) ly hang cao hoi. hieu ((tu cham) OR (thi cham)) lo va thanh vai cua tre".
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (tu sach)) ly hang cao hoi. hieu ((tu cham) OR (thi cham)) lo va thanh vai cua tre*.