Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cong danh do snippets" » "cong danh code snippets", "cuong danh do snippets", "cong dan do snippets", "cong thanh do snippets", "cong dang do snippets", "cong danh co snippets", "cong danh di 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: (((("cong danh do snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"cong danh do snippets\") OR (\"python using java snippets\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( cong danh do snippets ) OR ( python using java snippets ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong danh do snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))*.