Perhaps you should try some spelling variations:
thieu lang » hieu lang, thieu khang, thieu quang
hanh trinh » canh tranh, hanh chinh
trinh thuc » trinh tu, trinh thi
thuc khong » thuoc khong, phuc khong, thu khong
khong cong » thong cong, khong cang, chong cong
nang cham » trang cham, nang cao, nang phat
tran nhat » toan nha, tran chau

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc thieu lang - hanh trinh thuc khong cong ((nang cham) or (tran nhat)) ran~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu lang - hanh trinh thuc khong cong ((nang cham) OR (tran nhat)) ran*.