Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phat cao hoc snippets" » "chat cao hoc snippets", "phat giao hoc snippets", "thuat cao hoc snippets", "phat co hoc snippets", "phat cho hoc snippets", "phat chat hoc 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: (((("phat cao hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phat cao hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phat cao hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phat cao hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.