Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tu tuan do snippets" » "tu tuan code snippets", "thu tuan do snippets", "tu luan do snippets", "ta tuan do snippets", "tu toan do snippets", "tu truan doi snippets", "tu quan doi 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: (((("tu tuan 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: (((("tu tuan do snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( tu tuan do snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tu tuan do snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.