Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nang sinh du snippets" » "dang sinh du snippets", "nang kinh du snippets", "khang sinh du snippets", "nang dinh du snippets", "nang sinh de snippets", "nang sinh dh snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("nang sinh du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nang sinh du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nang sinh du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nang sinh du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.