Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"trac hoc doc snippets" » "trac hoc code snippets", "toan hoc doc snippets", "thai hoc doc snippets", "toc hoc doc snippets", "trac hoc duoc snippets", "trac hoc do snippets", "trac hoc doi 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: (((("trac hoc doc snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"trac hoc doc snippets\") OR (\"python using java snippets\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( trac hoc doc snippets ) OR ( python using java snippets ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trac hoc doc snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))*.