Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
hanh trinh » canh tranh, hanh chinh
lieu tinh » trieu tinh, diep tinh, bien tinh
va phuong » va thuong, cac phuong
trinh va » trinh van, trinh vat, trinh ve
cong dan » cong san, cong tan, huong dan
toan tai » toan ban, toan cao, von tai
toan tap » toan ban
ho lieu » so lieu, co lieu, ho kieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho lieu tinh - hanh trinh 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: ho lieu tinh - hanh trinh va phuong cong dan ((((toan tai) OR (doanh tai))) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: ho lieu tinh - hanh trinh va phuong cong dan ((((toan tai) or (doanh tai))) or (toan tap))*.