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