Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phi hai viet slippers" » "phi thai viet slippers", "phi mai viet slippers", "phi tai viet slippers", "thi hai viet slippers", "pho hai viet slippers", "phi hai viet slippery", "phi hai 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: (((("phi hai 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: (((("phi hai viet slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phi hai viet slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phi hai viet slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.