Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van cac cach snippets" » "van cai cach snippets", "van cuoc cach snippets", "van va cach snippets", "van hac cach snippets", "van cau cach snippets", "van bac cach 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: (((("van cac cach snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van cac cach snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van cac cach snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van cac cach snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.