Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van than cao snippets" » "van than code snippets", "van thanh cao snippets", "van thang cao snippets", "van tuan cao snippets", "van toan cao snippets", "van thai cao snippets", "van than cap snippets"
"python using java snippets" » "python using data snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("python using java snippets") OR ("van than cao snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"python using java snippets\") OR (\"van than cao snippets\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( python using java snippets ) OR ( van than cao snippets ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") OR ("van than cao snippets"))) OR ("locating bug core snippets"))*.