Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dong luoc ve snippets" » "dong luoc code snippets", "dong luc ve snippets", "dong duoc ve snippets", "dong quoc ve snippets", "dong nuoc ve snippets", "dong luoc va snippets", "dong luoc vu 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: (((("dong luoc ve snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong luoc ve snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dong luoc ve snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong luoc ve snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.