Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh trang » thanh trung, canh tranh, hanh trinh
trinh toan » tinh toan, thanh toan, trinh quan
hanh mang » nhanh mang, nhanh lang, thanh hang
trinh han » trinh quan
chao chu » cho chu, cua chu, cao cho
chu manh » ho manh, chu han, chu van

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: chao chu manh - ((hanh mang) or (hanh trang)) va nhung cong ((trinh toan) OR (trinh han)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: chao chu manh - ((hanh mang) OR (hanh trang)) va nhung cong ((trinh toan) OR (trinh han)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "chao chu manh - ((hanh mang) or (hanh trang)) va nhung cong ((trinh toan) OR (trinh han)) cao".
• Adding a wildcard symbol may retrieve word variants: chao chu manh - ((hanh mang) or (hanh trang)) va nhung cong ((trinh toan) OR (trinh han)) cao*.