Perhaps you should try some spelling variations:
ngang cho » nang cho, ngang tho, sang cho
doc sach » hoc sach, nuoc sach, dac sac
toc sach » hoc sach, thuoc sach, nuoc sach
van hanh » van thanh, ban hanh, van anh
ty ngang » ly ngan, te ngan, tu ngan
cac xuc » cam xuc, cac nuoc, chat xuc
vai cua » dai cua, hai cua, lai cua
xuc van » duc van, luc van, vuc van
hieu ve » hieu va, hieu van
cho hoc » co hoc, khoa hoc
ve cac » va cac, vien cac
vi cua » di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc sach) OR (toc sach)) ty ngang cho hoc. hieu ve cac xuc van hanh ((vi cua) or (vai cua)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc sach) OR (toc sach)) ty ngang cho hoc. hieu ve cac xuc van hanh ((vi cua) OR (vai cua)) cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc sach) OR (toc sach)) ty ngang cho hoc. hieu ve cac xuc van hanh ((vi cua) or (vai cua)) cau*".