Perhaps you should try some spelling variations:
hoc sach » hoc sinh, hoc cac, hoc anh
hanh dao » lanh dao, thanh dat, thanh dam
van hanh » van thanh, ban hanh, van anh
cac xuc » cam xuc, cac nuoc, chat xuc
tu nang » tru nang, tu nong, vu nang
dao cua » dai cua, day cua, dan cua
tu lang » cu lang, tu lanh, xu lang
tu nano » truc nano
hieu ve » hieu va, hieu van
xuc van » duc van, luc van, vuc van
ma hoi » mai hoi, xa hoi, ma hoa
ve cac » va cac, vien cac
cua tu » cua tuc, cua su, cua cu

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

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