Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham hanh ve snippets" » "pham thanh ve snippets", "pham anh ve snippets", "pham hang ve snippets", "pham hanh vi snippets", "pham hanh va snippets", "pham hanh kem 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 hanh ve 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 hanh ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham hanh ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham hanh ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.