Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"luu thanh o2 snippets" » "luu thanh code snippets", "luu hanh o2 snippets", "cuu thanh o2 snippets", "luan thanh o2 snippets", "luu thanh hoa snippets", "luu thanh loi snippets", "luu thanh 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: (((("python using java snippets") or ("luu thanh o2 snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("luu thanh o2 snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( luu thanh o2 snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("luu thanh o2 snippets"))) or ("locating bug core snippets"))*.