Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"doi dieu can snippets" » "doi dieu code snippets", "moi dieu can snippets", "doi dien can snippets", "boi dieu can snippets", "doi dieu hanh snippets", "doi tiep can snippets", "doi dieu cua 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: (((("doi dieu can snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doi dieu can snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( doi dieu can snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi dieu can snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.