Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cong dan chu snippets" » "cong dan code snippets", "cong san chu snippets", "cong tan chu snippets", "huong dan chu snippets", "cong dan cu snippets", "cong can chu snippets", "cong dan cho 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 dan chu 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 dan chu snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cong dan chu snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong dan chu snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.