Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dat khanh du snippets" » "dat khanh code snippets", "van khanh du snippets", "duy khanh du snippets", "dat khach deu snippets", "dat khanh bui snippets", "dat khanh thu snippets"
"python using java snippets" » "python using data 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: (((("python using java snippets") or ("dat khanh du snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("dat khanh du snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( dat khanh du snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("dat khanh du snippets"))) or ("locating bug core snippets"))*.