Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu tinh » trieu tinh, chieu tinh, thien tinh
hoc thieu » toc thieu, hoc hien
cua nhan » ca nhan, cua nha, cua nhung
cua ngan » cua ban, vu ngan, cua dan
tong dan » tuong dan, thong dan, trong dan
toan tai » toan tap, doanh tai, toan cao
toan ban » van ban

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 - thanh trung ((cua nhan) OR (cua ngan)) tong dan ((toan tai) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - thanh trung ((cua nhan) OR (cua ngan)) tong dan ((toan tai) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu tinh - thanh trung ((cua nhan) OR (cua ngan)) tong dan ((toan tai) or (toan ban))".
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - thanh trung ((cua nhan) OR (cua ngan)) tong dan ((toan tai) or (toan ban))*.