Perhaps you should try some spelling variations:
thi nang » thi hanh
ban hanh » ban hang
thi cong » tai cong, thien cong
te sach » toc sach
luc ban » duc ban, cuc ban, luc bat
cac luc » cau luc, coc luc, cac nuoc
hieu ve » hieu va, hieu van
cua chu » sua chua
ki nang » ky nang
ve cac » va cac, vien cac
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 ((((thi nang) OR (ki nang))) or (thi cong)) xa hoi. hieu ve cac luc ban hanh vi cua chu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((((thi nang) OR (ki nang))) OR (thi cong)) xa hoi. hieu ve cac luc ban hanh vi cua chu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((((thi nang) OR (ki nang))) or (thi cong)) xa hoi. hieu ve cac luc ban hanh vi cua chu".
• Adding a wildcard symbol may retrieve word variants: te sach ((((thi nang) OR (ki nang))) or (thi cong)) xa hoi. hieu ve cac luc ban hanh vi cua chu*.