Perhaps you should try some spelling variations:
hanh tang » hanh trang, anh tang, hanh mang
chua dong » cua dong, ha dong, huy dong
chi sang » chi lang, chieu sang, chi chang
cua nong » cua cong, cuu nong, cua dong
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » toan cao, toan ban, toan tap
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi sang - hanh tang ((chua dong) or (cua nong)) cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi sang - hanh tang ((chua dong) OR (cua nong)) cong tac toan cau*.