Perhaps you should try some spelling variations:
dang thanh » dong thanh, dang hanh, hoang thanh
hanh trinh » canh tranh, hanh chinh
nang cong » nang song, dang cong, bang cong
dang tran » quang tran, hoang tran, dang van
thau hau » thau dau, thau hieu, thau kham
hau sach » khau sach, cau sach, ham sach
trinh va » trinh van, trinh vat, trinh ve
va nang » van nang, da nang, cam nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: thau hau sach - hanh trinh va nang cong ((dang tran) or (dang thanh)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thau hau sach - hanh trinh va nang cong ((dang tran) OR (dang thanh)) cao.
• Adding a wildcard symbol may retrieve word variants: thau hau sach - hanh trinh va nang cong ((dang tran) or (dang thanh)) cao*.