Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham tuan ca snippets" » "pham luan ca snippets", "pham xuan ca snippets", "pham thanh ca snippets", "pham tan ca snippets", "pham tuan cu snippets", "pham thuan cam 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: (((("pham tuan ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pham tuan ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham tuan ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham tuan ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.