Perhaps you should try some spelling variations:
tan hang » tan khang, ban hang, van hang
hang hai » hoang hai, hang tai, thanh hai
te sach » toc sach
dai hoi » dai hoc, dai hai, dai moi
hieu ve » hieu va, hieu van
cam duc » cam xuc, cao duc, pham duc
y nang » ky nang, ly nang, v nang
ve cam » ve cham, ve cac, va cam
cua tu » cua tuc, cua su, cua cu

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 y nang ((xa hoi) or (dai hoi)). hieu ve cam duc tan hang hai ((cua te) or (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang ((xa hoi) OR (dai hoi)). hieu ve cam duc tan hang hai ((cua te) OR (cua tu)).
• Adding a wildcard symbol may retrieve word variants: te sach y nang ((xa hoi) or (dai hoi)). hieu ve cam duc tan hang hai ((cua te) or (cua tu))*.