Perhaps you should try some spelling variations:
thieu khang » chieu khong, thieu quang
thieu nang » thien nang, thieu quang, thi nang
te sach » toc sach
hanh le » thanh le, hanh ve, hanh de
va cham » va chat, va tham
hieu va » lieu va, hieu qua
xuc va » duc va, tuc va, luc va
le cua » ly cua
cua te » cua tu

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 ((thieu nang) OR (thieu khang)) xa hoi. hieu va cham ((xuc va) or (tuc xa)) hanh le cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((thieu nang) OR (thieu khang)) xa hoi. hieu va cham ((xuc va) OR (tuc xa)) hanh le cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((thieu nang) OR (thieu khang)) xa hoi. hieu va cham ((xuc va) or (tuc xa)) hanh le cua te".
• Adding a wildcard symbol may retrieve word variants: te sach ((thieu nang) OR (thieu khang)) xa hoi. hieu va cham ((xuc va) or (tuc xa)) hanh le cua te*.