Perhaps you should try some spelling variations:
thien tinh » khien tinh, thien minh, tien tinh
hoc thien » hoc hien, hoc thieu, hoc thiet
hanh manh » lanh manh, hoang manh, thanh minh
hanh mang » nhanh mang, hanh trang, nhanh lang
cong vinh » cong trinh, trong vinh, cong viec
vinh van » dinh van, trinh van, sinh vat

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thien tinh - ((hanh manh) or (hanh mang)) ((cua nhung) OR (va nhung)) cong vinh van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien tinh - ((hanh manh) OR (hanh mang)) ((cua nhung) OR (va nhung)) cong vinh van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thien tinh - ((hanh manh) or (hanh mang)) ((cua nhung) OR (va nhung)) cong vinh van ban".
• Adding a wildcard symbol may retrieve word variants: hoc thien tinh - ((hanh manh) or (hanh mang)) ((cua nhung) OR (va nhung)) cong vinh van ban*.