Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cum dan do snippets" » "cum dan code snippets", "cum danh do snippets", "cua dan do snippets", "cu dan do snippets", "cum dang do snippets", "cum dan dao snippets", "cum doan do 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: (((("cum dan do snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cum dan do snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cum dan do snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cum dan do snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.