Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cong va dot snippets" » "cong va code snippets", "dong va dot snippets", "cong ha dot snippets", "cong tac dot snippets", "cong va doc snippets", "cong va do snippets", "cong va 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: (((("cong va dot snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong va dot snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cong va dot snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong va dot snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.