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