Perhaps you should try some spelling variations:
hanh truong » hanh trong, anh truong, manh truong
thiet danh » thien danh, thien anh, thien dang
manh trung » manh tung, thanh trung, manh hung
manh tuong » manh tung, manh cuong, minh tuong
hoc thiet » hoc thieu, hoc thuyet, hoc hien
nang cong » nang song, dang cong, bang cong
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap
va nang » van nang, da nang, cam nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thiet danh - ((hanh truong) or (((manh trung) or (manh tuong)))) va nang cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thiet danh - ((hanh truong) OR (((manh trung) OR (manh tuong)))) va nang cong dan toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc thiet danh - ((hanh truong) or (((manh trung) or (manh tuong)))) va nang cong dan toan cau*.