Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"thi luan hon snippets" » "thi luan code snippets", "thi lan hon snippets", "thi xuan hon snippets", "thi loan hon snippets", "thi luan hoan snippets", "thi luan han snippets", "thi luan von 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: (((("thi luan hon snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thi luan hon snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( thi luan hon snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi luan hon snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.