Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cong luan da snippets" » "cong luan code snippets", "tong luan da snippets", "cong tuan da snippets", "dong luan da snippets", "cong luan dac snippets", "cong luan day snippets", "cong luan va 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 luan da 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 luan da snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cong luan da snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong luan da snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.