Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong vinh bo snippets" » "cong trinh bo snippets", "trong vinh bo snippets", "cong viec bo snippets", "cong dinh bo snippets", "cong vinh ba snippets", "cong vinh son 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 vinh bo 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 vinh bo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong vinh bo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong vinh bo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.