Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
theo chua » theo chu, ho chua, cheo cua
chua nang » chuc nang, chua xang, kha nang
cua trong » cua truong, cua trung, ca trong
qua trong » quan trong, qua trinh, qua song
cong dan » cong san, cong tan, huong dan
toan tai » toan tap, doanh tai, toan ban
toan cao » toan ban, toan tap

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo chua nang - hanh trinh ((cua trong) OR (qua trong)) cong dan ((toan tai) OR (toan cao))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chua nang - hanh trinh ((cua trong) OR (qua trong)) cong dan ((toan tai) or (toan cao))~".
• Adding a wildcard symbol may retrieve word variants: theo chua nang - hanh trinh ((cua trong) OR (qua trong)) cong dan ((toan tai) or (toan cao))*.