Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"luc tiem doi snippets" » "luc tiem code snippets", "luc tieng doi snippets", "luc thien doi snippets", "luc thiet doi snippets", "luc tiep doi snippets", "luc bien doi snippets", "luc tinh doi 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: (((("luc tiem doi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luc tiem doi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( luc tiem doi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc tiem doi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.