Perhaps you should try some spelling variations:
hanh tang » hanh trang, anh tang, hanh mang
tang luan » dung luan
luan hang » luan nang, luan han, luan hung
hang cong » dang cong, hang nong, bang cong
cong tinh » cong trinh, cong vinh, long tinh
chu nang » chua nang, cuu nang, chu bang
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: theo ((chuc nang) or (chu nang)) - hanh tang luan hang cong tinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chuc nang) OR (chu nang)) - hanh tang luan hang cong tinh toan cau.
• Adding a wildcard symbol may retrieve word variants: theo ((chuc nang) or (chu nang)) - hanh tang luan hang cong tinh toan cau*.