Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tran tu son snippets" » "tran tu code snippets", "tran tuan son snippets", "tran thuy son snippets", "tran thi son snippets", "tran tu so snippets", "tran tu san snippets", "tran vu son 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 tu 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: (((("tran tu son snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( tran tu son snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tran tu son snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.