Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong cay so snippets" » "cong xay so snippets", "cong cau so snippets", "cong cac so snippets", "cong cay co snippets", "cong cay mo snippets", "cong cao so 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: (((("cong cay 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: (((("cong cay so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong cay so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong cay so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.