Perhaps you should try some spelling variations:
"giang theo c snippets" » "giang thi c snippets", "tang theo c snippets", "giang thuc c snippets", "giang theo 9 snippets", "giang theo chu snippets", "giang theo ucp snippets"
"python using java snippets" » "python using data snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("giang theo c snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("giang theo c snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( giang theo c snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("giang theo c snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.