Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cac do minh slippers" » "cac dao minh slippers", "cac do dinh slippers", "cac doan minh slippers", "cac don minh slippers", "cac doi minh slippers", "cac du minh slippers", "cac do minh slippery", "cac do minh 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.

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