Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
hoc thieu » toc thieu, hoc hien
van thang » van thanh, van khang, van hang
cong tinh » cong trinh, cong vinh, cong thanh
long tinh » trong tinh, luong tin, dong tin
toan ban » van ban
va lang » va nang, hoa lang

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 tinh - canh tranh ((van thang) or (va lang)) ((cong tinh) or (long tinh)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - canh tranh ((van thang) OR (va lang)) ((cong tinh) OR (long tinh)) toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - canh tranh ((van thang) or (va lang)) ((cong tinh) or (long tinh)) toan ban*.