Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"gio cao cong snippets" » "gio cac cong snippets", "gio cao dang snippets", "gio cua cong snippets", "gio cho cong snippets", "gioi cam cong snippets", "gioi can cong 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 cao cong 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 cao cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( gio cao cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("gio cao cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.