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