Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hat van canh snippets" » "hat van anh snippets", "hat van hanh snippets", "hat van manh snippets", "hoat van canh snippets", "ha van canh snippets", "hai van canh 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: (((("hat van canh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hat van canh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hat van canh snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hat van canh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.