Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi nao nghe snippets" » "thi nam nghe snippets", "thi tao nghe snippets", "thi nang nghe snippets", "thi hao nghe snippets", "thi bao nghe snippets", "thi dao nghe 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: (((("thi nao nghe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thi nao nghe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi nao nghe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi nao nghe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.