Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"a trong che snippets" » "a trong cho snippets", "a trong chien snippets", "a trong cham snippets", "ca trong che snippets", "va trong che snippets", "ai trong che snippets"
"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: "((((\"a trong che snippets\") OR (\"python using java snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( a trong che snippets ) OR ( python using java snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("a trong che snippets") OR ("python using java snippets"))) OR ("locating bug code snippets"))*.