Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
hanh tang » anh tang, hanh mang, hanh tung
chua dong » cua dong, ha dong, huy dong
dong cong » duong cong, dung cong, dang cong
cong tinh » cong trinh, cong vinh, long tinh
chu manh » ho manh, chu han, thu minh
toan ban » van ban
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 manh) OR (chu van)) - ((hanh tang) or (hanh trang)) chua dong cong tinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu manh) OR (chu van)) - ((hanh tang) OR (hanh trang)) chua dong cong tinh toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chu manh) OR (chu van)) - ((hanh tang) or (hanh trang)) chua dong cong tinh toan ban".
• Adding a wildcard symbol may retrieve word variants: theo ((chu manh) OR (chu van)) - ((hanh tang) or (hanh trang)) chua dong cong tinh toan ban*.