Perhaps you should try some spelling variations:
"hanh thi trinh slippers" » "hanh tho trinh slippers", "hanh thi thanh slippers", "hanh thi minh slippers", "nhanh thi trinh slippers", "hanh thoi trinh slippers", "anh thi trinh slippers", "hanh thi trinh slippery", "hanh thi trinh grippers"
"dung java java snippets" » "dung va java snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("hanh thi trinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hanh thi trinh slippers") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hanh thi trinh slippers ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hanh thi trinh slippers") or ("dung java java snippets"))) or ("locating bug code snippets"))*.