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