Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
trinh vat » trinh van, trinh luat, sinh vat
cong sang » cong san, cong lang, cong vang
sang toan » sang than, dang toan, quang toan
trinh va » trinh van, trinh ve, trinh vi
toan cao » toan ban, toan tap

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 - canh ((trinh va) or (trinh vat)) nhung cong sang toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - canh ((trinh va) OR (trinh vat)) nhung cong sang toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - canh ((trinh va) or (trinh vat)) nhung cong sang toan cao*.