Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
va thanh » gia thanh, ban thanh, va tinh
tu sach » thu sach, su sach, tu cach
vai cua » dai cua, hai cua, lai cua
truc va » thuc va, thuc vat, trung va
hieu va » lieu va, hieu qua
dang ha » dong ha, dung ha, lang ha
dang xa » dang xay, lang xa, dang va
te sach » toc sach
va cau » van cau, va cac, va dau
cua te » cua tu

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) or (te sach)) ky ((dang xa) OR (dang ha)) hoi. hieu va cau truc va thanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) ky ((dang xa) OR (dang ha)) hoi. hieu va cau truc va thanh vai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (te sach)) ky ((dang xa) OR (dang ha)) hoi. hieu va cau truc va thanh vai cua te".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) ky ((dang xa) OR (dang ha)) hoi. hieu va cau truc va thanh vai cua te*.