Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"da cua tccn snippets" » "da cua can snippets", "da cua tuc snippets", "da cu tcc snippets", "dai cua tccn snippets", "day cua tccn snippets", "dan cua tccn 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 cua tccn snippets\") OR (\"python using java snippets\"))) OR (\"locating bug core snippets\"))~".
• Removing quotes may allow a broader search: (((( da cua tccn snippets ) OR ( python using java snippets ))) OR ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("da cua tccn snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))*.