Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cua chi cua snippets" » "cua chi code snippets", "cua chu cua snippets", "ca chi cua snippets", "cua cha cua snippets", "cua chi cuc snippets", "cua khi cua snippets", "cua cuoi 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: (((("cua chi cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cua chi cua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cua chi cua snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua chi cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.