Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"da lieu do snippets" » "da lieu code snippets", "du lieu do snippets", "da dieu do snippets", "vat lieu do snippets", "da lieu dao snippets", "da lieu doi snippets", "da lieu so snippets"
"python using java snippets" » "python using data 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: "((((\"da lieu do snippets\") OR (\"python using java snippets\"))) OR (\"locating bug core snippets\"))~".
• Removing quotes may allow a broader search: (((( da lieu do snippets ) OR ( python using java snippets ))) OR ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("da lieu do snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))*.