Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tran hoc do snippets" » "tran hoc code snippets", "toan hoc do snippets", "than hoc do snippets", "trac hoc do snippets", "tran hoc doi snippets", "tran hoc co snippets", "tran hoc bo snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("tran hoc do snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tran hoc do snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( tran hoc do snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tran hoc do snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.