Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cu thuat moi snippets" » "cu thuat doi snippets", "cu thuat mo snippets", "cu thuat noi snippets", "thu thuat moi snippets", "cac thuat moi snippets", "ky thuat moi 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: (((("cu thuat moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cu thuat moi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cu thuat moi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cu thuat moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.