Perhaps you should try some spelling variations:
hanh trang » thanh trung, hanh trinh, minh trang
lieu tinh » trieu tinh, diep tinh, bien tinh
dung cong » dung trong
tran chau » tranh chap
cua dung » cua dang, cua dong, qua dung
cong tac » cong ty
tran huu » tran duc
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 trang) or (canh tranh)) cua dung cong tac ((tran chau) OR (tran huu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho lieu tinh - ((hanh trang) OR (canh tranh)) cua dung cong tac ((tran chau) OR (tran huu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho lieu tinh - ((hanh trang) or (canh tranh)) cua dung cong tac ((tran chau) OR (tran huu))".
• Adding a wildcard symbol may retrieve word variants: ho lieu tinh - ((hanh trang) or (canh tranh)) cua dung cong tac ((tran chau) OR (tran huu))*.