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