Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"menh ve cac snippets" » "benh ve cac snippets", "minh ve cac snippets", "menh de cac snippets", "menh va cac snippets", "menh vien cac 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: (((("menh ve cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("menh ve cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( menh ve cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("menh ve cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.