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