Perhaps you should try some spelling variations:
"cua trinh java snippets" » "qua trinh java snippets", "cua tinh java snippets", "xuan trinh java snippets", "cua trinh java slippers"
"python using l snippets" » "python using lc snippets", "python using a snippets", "python using _ snippets", "python using l 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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"python using l snippets\") OR (\"cua trinh java snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( python using l snippets ) OR ( cua trinh java snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("python using l snippets") OR ("cua trinh java snippets"))) OR ("locating bug code snippets"))*.