Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pha nhat de snippets" » "pham nhat de snippets", "phap phat de snippets", "phap nham de snippets", "pha nhat ve snippets", "pha nhat le snippets", "pha chat deo 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: (((("pha nhat 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: (((("pha nhat de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pha nhat de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pha nhat de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.