Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"phan doc doi snippets" » "phan doc code snippets", "phan duoc doi snippets", "phan duc doi snippets", "than doc doi snippets", "phan hoc doi snippets", "phan cuoc doi snippets", "phan luoc 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: (((("phan doc 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: (((("phan doc doi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( phan doc doi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan doc doi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.