Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
chong san » thong san, chong gian, chong lang
anh phan » hanh phan, anh nhan, anh han
cong san » cong tac
than tap » toan tap, han tap, phan tap
phan va » phan van, nhan va, han va
pha tap » pham tai

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 xanh - anh phan va nhung ((chong san) or (cong san)) ((than tap) or (pha tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - anh phan va nhung ((chong san) OR (cong san)) ((than tap) OR (pha tap)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - anh phan va nhung ((chong san) or (cong san)) ((than tap) or (pha tap))*.