Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ban cau tre snippets" » "bang cau tre snippets", "ban can tre snippets", "van cau tre snippets", "ban cau tren snippets", "ban cau treo snippets", "ban cau tra snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("ban cau tre snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ban cau tre snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ban cau tre snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ban cau tre snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.