Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dia trong vo snippets" » "da trong vo snippets", "dua trong vo snippets", "gia trong vo snippets", "dia trong va snippets", "dia trong co snippets", "dia tuong vo 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: (((("dia trong vo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dia trong vo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dia trong vo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dia trong vo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.