Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doc hang cho snippets" » "doc hanh cho snippets", "hoc hang cho snippets", "oc hang cho snippets", "doc sang cho snippets", "doc han cho snippets", "doc tang cho 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 hang cho 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 hang cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doc hang cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doc hang cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.