Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hanh trinh » canh tranh, hanh chinh
hoc chieu » hoc thieu, ho chieu, hoc hien
cong dan » cong san, cong tan, huong dan
dan thai » dang thai, dan thi, dan than
thai cao » tai cao, thoai cac, thuat cao
va hang » van hang, va lang, va hanh
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: hoc chieu sang - hanh trinh ((va hang) OR (va nang)) cong dan thai cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu sang - hanh trinh ((va hang) OR (va nang)) cong dan thai cao".
• Adding a wildcard symbol may retrieve word variants: hoc chieu sang - hanh trinh ((va hang) OR (va nang)) cong dan thai cao*.