Perhaps you should try some spelling variations:
hoc sach » hoc sinh, hoc cac, hoc anh
va thanh » gia thanh, ban thanh, va tinh
te sach » toc sach
ky danh » ky anh, ky dang
danh xa » danh ca, dinh xa, canh xa
hieu va » lieu va, hieu qua
cam duc » cam xuc, cao duc, pham duc
va cam » va cham, va cac, va cao
di cua » doi cua, de cua, do cua

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