Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"thi luan da snippets" » "thi luan code snippets", "thi lan da snippets", "thi xuan da snippets", "thi loan da snippets", "thi luan dac snippets", "thi luan day snippets", "thi luan va 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 da 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 da snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( thi luan da snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi luan da snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.