Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dinh van dot snippets" » "trinh van dot snippets", "sinh vat dot snippets", "dinh van do snippets", "dinh va dot snippets", "dinh van dat 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: (((("dinh van dot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dinh van dot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dinh van dot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dinh van dot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.