Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dung su chon snippets" » "dung su code snippets", "dung cu chon snippets", "dung du chon snippets", "dung so chon snippets", "dung su choi snippets", "dung tu chon snippets", "dung lua chon 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: (((("dung su chon snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung su chon snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dung su chon snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung su chon snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.