Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
chat xuc » chat huu, cam xuc, chao xu
thi nang » ki nang, thi hanh
thi cong » tai cong, thien cong
te sach » toc sach
xuc van » duc van, luc van, vuc van
va chat » van chat, va phat, cao chat
cho hoc » co hoc, khoa hoc
hieu va » lieu va, hieu qua
tu nang » tru nang, tu nong, tu nano
cua cau » cua cac, cua chu, cua cay
vi cua » vai 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: te sach ((tu nang) or (((thi nang) OR (thi cong)))) cho hoc. hieu va chat xuc van hanh vi cua cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((tu nang) OR (((thi nang) OR (thi cong)))) cho hoc. hieu va chat xuc van hanh vi cua cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((tu nang) or (((thi nang) OR (thi cong)))) cho hoc. hieu va chat xuc van hanh vi cua cau*".