Perhaps you should try some spelling variations:
manh hanh » xanh hanh, danh thanh, minh thanh
te sach » toc sach
sach ty » sach y, sach tu, sach thu
hanh va » hang va, hanh vi
cao suc » cao su, cao duc
cam suc » cam xuc, cham soc
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
va cua » va chua, via cua, ca 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 ty nang xa hoi. ((hieu ve) or (lieu va)) ((cam suc) OR (cao suc)) manh hanh va cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang xa hoi. ((hieu ve) OR (lieu va)) ((cam suc) OR (cao suc)) manh hanh va cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty nang xa hoi. ((hieu ve) or (lieu va)) ((cam suc) OR (cao suc)) manh hanh va cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach ty nang xa hoi. ((hieu ve) or (lieu va)) ((cam suc) OR (cao suc)) manh hanh va cua tre*.