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