Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"lieu tu hanh snippets" » "lieu tai hanh snippets", "tieu thu hanh snippets", "kieu thu hanh snippets", "lieu tu thanh snippets", "lieu du hanh snippets", "lieu lu hanh 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: (((("lieu tu hanh snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lieu tu hanh snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( lieu tu hanh snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lieu tu hanh snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.