Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hanh he cheo snippets" » "hanh che cheo snippets", "hanh ve cheo snippets", "hanh de cheo snippets", "hanh hat cheo snippets", "hanh hoa cheo 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: (((("hanh he cheo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hanh he cheo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hanh he cheo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hanh he cheo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.