Perhaps you should try some spelling variations:
hieu lang » chieu sang, hieu quang, nhieu tang
va phuong » va thuong, cac phuong
cong tinh » cong trinh, cong vinh, long tinh
chu xanh » chu manh, chieu xanh, chua xang
anh tang » anh bang, anh dang, anh nang
va thong » va thuong, he thong, va cong
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 ((chu xanh) or (hieu lang)) - anh tang ((va thong) or (va phuong)) cong tinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu xanh) OR (hieu lang)) - anh tang ((va thong) OR (va phuong)) cong tinh toan cau.
• Adding a wildcard symbol may retrieve word variants: theo ((chu xanh) or (hieu lang)) - anh tang ((va thong) or (va phuong)) cong tinh toan cau*.