Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"moi kiem tim snippets" » "hoi kiem tim snippets", "thi kiem tim snippets", "moi viec tim snippets", "moi kiem tien snippets", "moi kiem tra snippets", "moi kiem thu snippets", "moi kiem tim 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: (((("moi kiem tim snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("moi kiem tim snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( moi kiem tim snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("moi kiem tim snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.