Perhaps you should try some spelling variations:
trinh toan » tinh toan, thanh toan, trinh quan
cua trong » cua truong, cua trung, qua trong
hanh tang » hanh trang, anh tang, hanh mang
trinh han » trinh quan
chu xanh » chu manh, chieu xanh, chua xang
tang cua » mang cua, hang cua, tang luan
chu van » cuu van, chu han

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

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