Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham sinh de snippets" » "pham minh de snippets", "phau sinh de snippets", "phai sinh de snippets", "pham sinh dh snippets", "pham sinh dai 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 sinh de 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 sinh de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham sinh de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham sinh de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.