Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"quoc ve duan slippers" » "quoc te duan slippers", "nuoc ve duan slippers", "quoc va duan slippers", "quoc ve quan slippers", "quoc le duan slippers", "quoc ve dan slippers", "quoc ve duan slippery", "quoc ve duan 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: (((("quoc ve duan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("quoc ve duan slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quoc ve duan slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quoc ve duan slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.