Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"xac xuan anh snippets" » "xac xuat anh snippets", "dac xuan anh snippets", "bach xuan anh snippets", "xac tuan anh snippets", "xac xuan thanh snippets", "xac xuan dinh 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: (((("xac xuan anh snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("xac xuan anh snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( xac xuan anh snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("xac xuan anh snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.