Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"troi tu du snippets" » "toi tu du snippets", "tri tu du snippets", "tro tu du snippets", "troi tu duy snippets", "troi tu dau snippets", "troi tru du 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: (((("troi tu 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: (((("troi tu du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( troi tu du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("troi tu du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.