Perhaps you should try some spelling variations:
nang dai » nang dau, nang tai, lang dai
te sach » toc sach
vuc van » duc van, thuc van, chuc van
hang de » hoang de, hanh de, hang di
luc van » luoc van, luu van, duc van
xuc van » duc van, xuc ban, thuc van
hieu ve » hieu va, hieu van
dai hoi » dai hoc, dai hai, dai moi
cua tuc » cua duc, cua tu, cua thuoc
y nang » ky nang, ly nang, v nang
ve cac » va cac, vien cac
de cua » le cua, te cua, dieu cua

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 dai hoi. hieu ve cac ((((xuc van) OR (vuc van))) or (luc van)) hang de cua tuc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang dai hoi. hieu ve cac ((((xuc van) OR (vuc van))) OR (luc van)) hang de cua tuc.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang dai hoi. hieu ve cac ((((xuc van) OR (vuc van))) or (luc van)) hang de cua tuc".
• Adding a wildcard symbol may retrieve word variants: te sach y nang dai hoi. hieu ve cac ((((xuc van) OR (vuc van))) or (luc van)) hang de cua tuc*.