Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
nang ma » tang ma, sang ma, mang may
hieu ve » hieu va, hieu van
cac xuc » cam xuc, cac nuoc, chat xuc
xuc van » duc van, luc van, xuc ban
de cua » le cua, te cua, dieu cua
di cua » dai cua, doi cua, do cua
ve cac » va cac, vien cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach y ((nang ma) OR (nang cao)) hoi. hieu ve cac xuc van hanh ((di cua) or (de cua)) tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y ((nang ma) OR (nang cao)) hoi. hieu ve cac xuc van hanh ((di cua) OR (de cua)) tu*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y ((nang ma) OR (nang cao)) hoi. hieu ve cac xuc van hanh ((di cua) or (de cua)) tu*".