Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tham do dk snippets" » "thai do dk snippets", "pham do dk snippets", "tham du dk snippets", "tham so dk snippets", "tham do de snippets", "tham do do 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: (((("tham do dk snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tham do dk snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tham do dk snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tham do dk snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.