Perhaps you should try some spelling variations:
"cac truong java snippets" » "cac truong va snippets", "cac truong james snippets"
"python using c snippets" » "python using lc snippets", "python using a snippets", "python using _ 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: (((("python using c snippets") or ("cac truong java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using c snippets") OR ("cac truong java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using c snippets ) or ( cac truong java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using c snippets") or ("cac truong java snippets"))) or ("locating bug code snippets"))*.