Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"pho dan cua snippets" » "pho dan code snippets", "pho danh cua snippets", "tho dan cua snippets", "pho da cua snippets", "pho dan ca snippets", "pho ban cua snippets", "pho dai 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: (((("pho dan 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: (((("pho dan cua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( pho dan cua snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pho dan cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.