Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"hat luat cau snippets" » "hat luat code snippets", "phap luat cau snippets", "hanh luat cau snippets", "thai luat cau snippets", "hat luat dau snippets", "hat lua cau snippets", "hat luat cac 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: (((("hat luat cau snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hat luat cau snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( hat luat cau snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hat luat cau snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.