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