Perhaps you should try some spelling variations:
nang cau » nang cao, hang cau, nang dau
thuc van » thuc vat, thuc dan, thuc va
cau tren » cu tren, dau tren, ca tren
tu sach » thu sach, su sach, te sach
tuc van » truc van, tuc va, duc van
hanh va » hang va, hanh vi
y nang » ky nang, ly nang, v nang
va cau » van cau, va cac, va dau
va co » vo co

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach y nang cau hoi. lieu va co ((tuc van) or (thuc van)) hanh va cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang cau hoi. lieu va co ((tuc van) OR (thuc van)) hanh va cau tren.
• Adding a wildcard symbol may retrieve word variants: tu sach y nang cau hoi. lieu va co ((tuc van) or (thuc van)) hanh va cau tren*.