Perhaps you should try some spelling variations:
trinh hang » tranh hang, trinh hanh, trinh bang
toc thien » toc thieu, ton thien, duoc thien
thien anh » thien danh, tien anh, thien thanh
trinh han » trinh quan
cong dan » cong san, cong tan, huong dan
chan ban » can ban, chat ban, chan doan
chan nan » chan nhan, chang nang, chan doan

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc thien anh - hanh ((trinh hang) or (trinh han)) thanh cong dan ((chan ban) OR (chan nan))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thien anh - hanh ((trinh hang) OR (trinh han)) thanh cong dan ((chan ban) OR (chan nan)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc thien anh - hanh ((trinh hang) or (trinh han)) thanh cong dan ((chan ban) OR (chan nan))".
• Adding a wildcard symbol may retrieve word variants: toc thien anh - hanh ((trinh hang) or (trinh han)) thanh cong dan ((chan ban) OR (chan nan))*.