Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"giua cong so snippets" » "gia cong so snippets", "cua cong so snippets", "qua cong so snippets", "giua cong san snippets", "giua cong hoa 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: (((("giua cong so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("giua cong so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( giua cong so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("giua cong so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.