Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
cong thanh » dong thanh, cong trinh, cong tan
hoc thieu » toc thieu, hoc hien
hanh tung » thanh tung, manh tung, hanh dung
thanh van » thanh san, thanh toan, thanh phan
anh nang » ganh nang, anh bang, anh dang
cua rung » cua trung, cua rang, cua truong
cua dong » chua dong, cua cong, cua dang

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 - ((hanh tung) or (anh nang)) ((cua rung) or (cua dong)) cong thanh van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - ((hanh tung) OR (anh nang)) ((cua rung) OR (cua dong)) cong thanh van ban.
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - ((hanh tung) or (anh nang)) ((cua rung) or (cua dong)) cong thanh van ban*.