Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nong san doc snippets" » "cong san doc snippets", "dong san doc snippets", "nong dan doc snippets", "nong nang doc snippets", "nong than doc snippets", "nong gian doc 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: (((("nong san doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nong san doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nong san doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nong san doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.