Perhaps you should try some spelling variations:
thien hach » thien thanh, hien hanh
hanh trang » thanh trung, canh tranh, tinh trang
minh trang » tinh trang, minh hoang, minh tuan
hanh trinh » canh tranh, hanh chinh
nhung cong » dung cong, thong cong, hang cong
hoc thien » hoc hien, hoc thieu, hoc thiet
cua nhung » va nhung
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thien hach - ((((hanh trang) or (minh trang))) or (hanh trinh)) cua nhung cong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien hach - ((((hanh trang) OR (minh trang))) OR (hanh trinh)) cua nhung cong tan toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc thien hach - ((((hanh trang) or (minh trang))) or (hanh trinh)) cua nhung cong tan toan cau*.