Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham nam ca snippets" » "pham nhat ca snippets", "pham van ca snippets", "pham tai ca snippets", "pham nam cao snippets", "pham nam cac snippets", "pham nam cua 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 nam 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 nam ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham nam ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham nam ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.