Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"giao tri cac snippets" » "gia tri cac snippets", "gio tri cac snippets", "giai tri cac snippets", "giao tri mac snippets", "giao tai cac snippets", "giao tri dac 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: (((("giao tri 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: (((("giao tri cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( giao tri cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("giao tri cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.