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