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