Perhaps you should try some spelling variations:
duc manh » suc manh, duc anh, duc minh
cua tre » cua te, cuu tre, cua triet
hanh ve » hanh vi, hanh va, hanh kem
xuc van » duc van, luc van, vuc van
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
tang ha » lang ha, tang ma, trung ha
sang ky » sang kyo, dang ky, tang ky
san ky » van ky, dan ky, ban ky
ha hoi » hoa hoi, ha noi, xa hoi
ve cua » le cua, de cua, te cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((san ky) or (sang ky)) tang ha hoi. hieu ve cham ((xuc van) or (duc manh)) hanh ve cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((san ky) OR (sang ky)) tang ha hoi. hieu ve cham ((xuc van) OR (duc manh)) hanh ve cua tre.
• Adding a wildcard symbol may retrieve word variants: tu ((san ky) or (sang ky)) tang ha hoi. hieu ve cham ((xuc van) or (duc manh)) hanh ve cua tre*.