Perhaps you should try some spelling variations:
thien van » thi van
toc sach » doc sach, thuoc sach, nuoc sach
hoc sach » hoc sinh, hoc cac, hoc anh
hanh vai » hanh vi, hanh va, hanh tai
lang xa » lang ha, dang xay, lang van
van cam » van nam, van lam, van cau
va hanh » van hanh, va thanh, va danh
vai cua » dai cua, hai cua, lai cua
xuc va » duc va, tuc va, luc va
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: ((te sach) or (((toc sach) OR (hoc sach)))) _ lang xa hoi. thien van cam xuc va hanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (((toc sach) OR (hoc sach)))) _ lang xa hoi. thien van cam xuc va hanh vai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) or (((toc sach) OR (hoc sach)))) _ lang xa hoi. thien van cam xuc va hanh vai cua te".
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (((toc sach) OR (hoc sach)))) _ lang xa hoi. thien van cam xuc va hanh vai cua te*.