Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ngoc hung re snippets" » "ngoc chuong re snippets", "quoc hung re snippets", "ngoc vung re snippets", "ngoc hung yen snippets", "ngoc chung ve 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: (((("ngoc hung re snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ngoc hung re snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ngoc hung re snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ngoc hung re snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.