Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
hanh trang » thanh trung, canh tranh, hanh trinh
lieu tinh » trieu tinh, diep tinh, bien tinh
va phuong » va thuong, cac phuong
trang va » tran van, hang va
cong dan » cong san, cong tan, huong dan
toan tai » toan ban, toan cao, von tai
toan tap » toan ban
co lieu » cot lieu, co hieu, so lieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: co lieu tinh - hanh trang va phuong cong dan ((((toan tai) or (doanh tai))) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: co lieu tinh - hanh trang va phuong cong dan ((((toan tai) OR (doanh tai))) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: co lieu tinh - hanh trang va phuong cong dan ((((toan tai) or (doanh tai))) or (toan tap))*.