Perhaps you should try some spelling variations:
quang lang » quan lang, quang dang, quang hoang
lang trong » dung trong, cong trong, dong trong
hieu manh » chieu xanh, hieu nganh, hien hanh
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
trong van » trong cac
van tan » van tuan, van ban, van tai
tan ban » toan ban, tang ban, van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hieu manh) OR (dieu hanh)) - hanh tinh quang lang trong van tan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hieu manh) OR (dieu hanh)) - hanh tinh quang lang trong van tan ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) OR (dieu hanh)) - hanh tinh quang lang trong van tan ban*.