Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"phan thi son snippets" » "phan thi code snippets", "pham thi son snippets", "tran thi son snippets", "phan tu son snippets", "phan thai son snippets", "phan thi song snippets", "phan thi mon 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: (((("python using java snippets") or ("phan thi son snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("phan thi son snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( phan thi son snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("phan thi son snippets"))) or ("locating bug core snippets"))*.