Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duong van ly slippers" » "duong va ly slippers", "luong va ly slippers", "dang van ly slippers", "duong van ky slippers", "duong van le slippers", "duong van lu slippers", "duong van ly slippery", "duong van ly grippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("python using java snippets") or ("duong van ly slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("duong van ly slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( duong van ly slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("duong van ly slippers"))) or ("locating bug code snippets"))*.