Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"python using java snippets" » "python using data snippets", "python using java slippers"
"van thi hap snippets" » "van tai hap snippets", "dan thi hap snippets", "van thu hap snippets", "van thi phap snippets", "van thi chap snippets", "van thi thap snippets", "van thi hap slippers"

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: (((("python using java snippets") or ("van thi hap snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("van thi hap snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( van thi hap snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("van thi hap snippets"))) or ("locating bugs code snippets"))*.