Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"paul dinh du snippets" » "paul danh du snippets", "phu dinh du snippets", "paul dinh duc snippets", "paul dinh cu snippets", "paul dinh tu 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: (((("paul dinh 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: (((("paul dinh du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( paul dinh du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("paul dinh du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.