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