Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"phan che son snippets" » "phan che code snippets", "han che son snippets", "phap che son snippets", "phan thi son snippets", "phan che mon snippets", "phan cho son snippets", "phan chet song 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: (((("phan che son 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 che son snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( phan che son snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan che son snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.