Perhaps you should try some spelling variations:
hoc thieu » toc thieu, hoc hien
thieu anh » thien anh, chieu xanh, thien danh
trinh dan » trinh han, trinh san, trinh dao
thuc hung » thuc chung, thuc nhung, thuc dung
cong than » cong thanh, cong thang, cong thai
trinh da » trinh dao, trinh do, trinh va
cong tan » cong tac, cong san, cong thanh
phan lap » phan dau

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 anh - ((trinh dan) OR (trinh da)) thuc hung ((cong than) or (cong tan)) phan lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu anh - ((trinh dan) OR (trinh da)) thuc hung ((cong than) OR (cong tan)) phan lap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu anh - ((trinh dan) OR (trinh da)) thuc hung ((cong than) or (cong tan)) phan lap".
• Adding a wildcard symbol may retrieve word variants: hoc thieu anh - ((trinh dan) OR (trinh da)) thuc hung ((cong than) or (cong tan)) phan lap*.