Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"quoc ban can snippets" » "quoc bao can snippets", "quoc lan can snippets", "quoc quan can snippets", "quoc ban dan snippets", "quoc ban hang snippets", "quoc ban hanh 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: (((("quoc ban can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("quoc ban can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quoc ban can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quoc ban can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.