Perhaps you should try some spelling variations:
vat cach » va cach, sat cac, mot cach
va trien » va truyen, va thiet, va tuyen
van cach » va cach, van canh, dan cach
vu sach » vu bach, su sach, vu khach
va hanh » van hanh, va thanh, va danh
cuu tre » cua tre, cau tren, cau treo
sach ly » sach y, sach lo, sach ty
nang xa » nang x, lang xa, nang ma
ly nang » ky nang, ly hang, ly vang

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ly nang xa hoi. thien ((van cach) OR (vat cach)) tu va hanh vi ((va trien) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ly nang xa hoi. thien ((van cach) OR (vat cach)) tu va hanh vi ((va trien) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ly nang xa hoi. thien ((van cach) OR (vat cach)) tu va hanh vi ((va trien) or (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: vu sach ly nang xa hoi. thien ((van cach) OR (vat cach)) tu va hanh vi ((va trien) or (cuu tre))*.