Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mon van canh snippets" » "mon van anh snippets", "mon van hanh snippets", "mon van manh snippets", "moi van canh snippets", "mon va canh snippets", "son 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: (((("mon 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: (((("mon van canh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mon van canh snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mon van canh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.