Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi nhu con snippets" » "thi thu con snippets", "thi nhung con snippets", "thi thuy con snippets", "thi thu cong snippets", "thi khu cong 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 nhu con 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 nhu con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi nhu con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi nhu con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.