Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"muc hoc viet snippets" » "muc hoc hien snippets", "luc hoc viet snippets", "duc hoc viet snippets", "duoc hoc viet snippets", "muc hoc viet slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("muc hoc viet snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("muc hoc viet snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( muc hoc viet snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("muc hoc viet snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.