Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cong cho du snippets" » "cong cho code snippets", "dong cho du snippets", "cong co du snippets", "rong cho du snippets", "cong cho cu snippets", "cong cho tu snippets", "cong cho duoc 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 cho du 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 cho du snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cong cho du snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong cho du snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.