Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"nhat tu nhan snippets" » "nha tu nhan snippets", "nhat vu nhan snippets", "nhat ngu nhan snippets", "nhat tue nhan snippets", "nhat cu nhan snippets", "nhat tu ngan 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: (((("nhat tu nhan snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhat tu nhan snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( nhat tu nhan snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhat tu nhan snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.