Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"con cho doi snippets" » "con cho code snippets", "cong cho doi snippets", "ton cho doi snippets", "con chi doi snippets", "con cho moi snippets", "con cuoc doi snippets", "con cho tuoi 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: (((("con cho doi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("con cho doi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( con cho doi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("con cho doi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.