Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bac canh dan slippers" » "bac can dan slippers", "bac thanh dan slippers", "luc canh dan slippers", "bac canh van slippers", "bac sanh dan slippers", "bac canh dan slippery", "bac canh dan grippers"
"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: (((("bac canh dan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("bac canh dan slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bac canh dan slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bac canh dan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.