Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
doi cua » dai cua, hoi cua
ly nang » ky nang, ly hang, ly vang
cao hoi » cau hoi, co hoi, cao hoc
hieu ve » hieu va, hieu van
cac xuc » cam xuc, cac nuoc, chat xuc
xuc van » duc van, luc van, vuc van
di cua » dai cua, de cua, do cua
ve cac » va cac, vien cac
y nang » ky nang, v nang, may nang

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