Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chat tham du snippets" » "chat thai du snippets", "chat thom du snippets", "chuan tham du snippets", "chat thap du snippets", "chat tham do snippets", "chat pham duc 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: (((("chat tham 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: (((("chat tham du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chat tham du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chat tham du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.