Perhaps you should try some spelling variations:
trien nang » trien nong, trien mang, thien nang
thue nang » thien nang, thuat nang, thi nang
van chat » cao chat
chat duc » chat xuc, chat doc, chet duoc
lieu van » lieu va, hieu van, sieu van
hang di » hang doi, hang vi, hang dien
hanh di » hanh vi, hanh de, danh di
te sach » toc sach
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 ((thue nang) or (trien nang)) xa hoi. lieu van chat duc va ((hanh di) OR (hang di)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((thue nang) OR (trien nang)) xa hoi. lieu van chat duc va ((hanh di) OR (hang di)) cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((thue nang) or (trien nang)) xa hoi. lieu van chat duc va ((hanh di) OR (hang di)) cua te".
• Adding a wildcard symbol may retrieve word variants: te sach ((thue nang) or (trien nang)) xa hoi. lieu van chat duc va ((hanh di) OR (hang di)) cua te*.