Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"khoe do van snippets" » "khoe doi van snippets", "khoe moi van snippets", "khoa doi van snippets", "khoe dao van snippets", "khoe vo van snippets", "khoe so van snippets", "khoe do van slippers"
"locating bug code snippets" » "locating bug code slippers", "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.

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