Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"gio chon cac snippets" » "gio cho cac snippets", "gio hon cac snippets", "mo chon cac snippets", "gio thong cac snippets", "gio hoc cac 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 chon cac 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 chon cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( gio chon cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("gio chon cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.