Perhaps you should try some spelling variations:
sach tien » sach tren, sach thieu
tien bang » thien bang, mien bang, tien lang
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
cua tre » cua te, cuu tre, cua triet
bang xa » lang xa, bang va, mang xa
ve cac » va cac, vien cac
ve cam » ve cham, va cam, ve cai
di cua » dai cua, doi cua, de 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 tien bang xa hoi. hieu ((ve cam) or (ve cac)) xuc ((gia thanh) or (van hanh)) di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach tien bang xa hoi. hieu ((ve cam) OR (ve cac)) xuc ((gia thanh) OR (van hanh)) di cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach tien bang xa hoi. hieu ((ve cam) or (ve cac)) xuc ((gia thanh) or (van hanh)) di cua tre*.