Perhaps you should try some spelling variations:
truong dong » truong dang, tuong dong, thuong dong
thieu sang » chieu sang, thieu khang, thieu quang
hanh trinh » canh tranh, hanh chinh
trong dong » trong cong, trong nong, trong dang
hoc thieu » toc thieu, hoc hien
trinh cac » trinh cau, trinh chat, trinh chao
tap doanh » tap doan, lap doanh, tap danh
doanh bao » doanh bat, doanh ban, doanh bac

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu sang - hanh trinh cac ((truong dong) OR (trong dong)) tap doanh bao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sang - hanh trinh cac ((truong dong) OR (trong dong)) tap doanh bao".
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - hanh trinh cac ((truong dong) OR (trong dong)) tap doanh bao*.